21 Proven Ways to Increase Brain Blood Flow

Without a doubt, healthy blood flow is absolutely essential for optimal brain function and mental health.

Brain blood flow, or cerebral blood flow, refers to the blood supply that reaches your brain during a given period of time. 

Your brain needs almost 20% of the blood supply provided by each heartbeat.

A steady flow of blood brings oxygen, glucose and nutrients to the brain, and carries carbon dioxide, lactic acid, and other metabolic waste products away from the brain.

But when blood flow to the brain is hindered, cognitive problems can arise.

Poor brain blood flow and circulation are linked to a number of brain and mental illnesses, including:

Increasing blood flow to the brain might be an effective therapeutic approach to prevent or treat Alzheimer’s.
— Dr. Robert Vassar

Some of the major causes of poor brain blood flow include abnormal blood pressure, poor circulation, low thyroid, infections, and stress (126-130). 

Besides addressing these major causes, there are a number of ways to directly increase the amount of oxygen-rich blood that flows to your brain.

Researchers use neuroimaging techniques such as functional magnetic resonance imaging (fMRI) and positron emission tomography (PET) to measure cerebral blood flow.

And they have found that the following 21 methods increase brain blood flow and circulation in humans. 

After suffering multiple concussions, I had severe depression and brain fog, and had no choice but to focus on optimizing brain blood flow and circulation.

A lot of these methods have been significantly helpful to me.

If you want to naturally increase blood flow to your brain, continue reading to learn more.


1. Exercise

Exercise is one of the best and most accessible ways to increase brain blood flow and circulation. 

Research shows that moderate exercise increases blood flow to the brain by as much as 15% (1). 

And you don’t even need to work out intensely to increase blood flow to your brain.

Simply walking for 30 minutes at a brisk pace, three or four times each week, is good enough to get more blood and oxygen to your brain and reap the benefits (2). 

In fact, the foot’s impact on the ground while walking sends pressure waves through the arteries, which sends more blood and oxygen to the brain (3). 

There are many studies that suggest that exercise improves brain function in older adults, but we don’t know exactly why the brain improves. Our study indicates it might be tied to an improvement in the supply of blood flow to the brain.
— Dr. Rong Zhang

Exercise has also been shown to protect against cognitive decline and dementia, promote neurogenesis, help reverse brain damage, and promote the regeneration of myelin.

So not surprisingly, exercise is recommended by many brain health experts and it’s often their number one piece of advice for optimal brain health.

My usual advice is to find a sport or exercise routine that you enjoy, so that you’ll stick with it consistently.

2. Cold Exposure

Exposing yourself to cold can also help you get more blood flowing to your brain. 

Research shows that putting your hand in ice water for one minute can significantly increase the speed of blood flow to the brain (6-8). 


Researchers have also found that cooling the skin during upright tilting maintains the speed of blood flow to the brain (5). 

Animal studies also show that cold exposure significantly increases cerebral blood flow (4). 

I take a cold shower every day, and often go outside with minimal clothing in the winter to increase my brain blood flow and circulation. 

You don’t have to do that right away though.

You can start out by finishing your next shower with at least 30 seconds of cold water.

See how you feel, and then work your way up to longer.

It can be a bit painful, but you get used to it and the beneficial effects are worth it.

Another way to ease yourself into it is by sticking your face, hand or foot in ice cold water.

Cold exposure also stimulates the vagus nerve and supports the endocannabinoid system

3. Sunlight


Research also shows that light stimulates brain blood flow and circulation.

Positron emission technology (PET) measures blood flow to specific areas of the brain.

In one study, researchers used PET scans to monitor cerebral blood flow in patients with season affective disorder (SAD) – before and after light therapy

Before light therapy, the scans show that patients had reduced blood flow to the cerebral cortex, the “executive” part of the brain.

But after just a few days of light therapy, this part of the brain started to light up, indicating greater activity and increased blood flow (9).

And this doesn’t just happen in depressed individuals.

Another study found that 10 minutes of light exposure can increase brain blood flow in healthy people (10). 

Light therapy even increases brain blood flow in pre-term infants (11). 

I personally get sunlight every day during the spring and summer months to support my brain health. It’s a simple way for me to increase blood flow to the brain every day.

Researchers have also found a positive correlation between Vitamin D levels and brain blood flow (94).

So I use this Vitamin D lamp during the winter months when there isn't enough sun.

4. Ginkgo Biloba

Ginkgo Biloba is a plant that has been used for thousands of years to treat a number of health problems.

Today, it’s one of the most popular herbal supplements in the world.

Doctors even prescribe it in Germany!

It’s most commonly used to improve brain health.

Researchers have found that it increases cognitive function, and improves memory and attention in both healthy and unhealthy individuals. It even reduces the risk of dementia and Alzheimer’s disease (15). 

It has these positive effects mainly by significantly increasing blood flow to the brain and increasing blood circulation in the brain (12-14). 

Gingko biloba is included in the Optimal Brain supplement

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5. Low-Level Laser Therapy (LLLT)

Low-level laser therapy (LLLT), or photobiomodulation, is a treatment that uses red and infrared light to support brain function.

The treatment involved either low-power lasers or light-emitting diodes (LEDs) that emit red and infrared light.

This red and infrared light is applied to the brain, and it stimulates brain cells, helping them helping them function better.

Most doctors are clueless about LLLT; but not every doctor. 


Dr. Norman Doidge, a physician who teaches at the University of Toronto here in Canada, discusses the amazing effects of LLLT in his book The Brain’s Way of Healing.

One way LLLT can help the brain is by increasing brain blood flow and circulation. 

One study found that applying near infrared light to the forehead can help treat depression and anxiety without side effects by increasing frontal regional cerebral blood flow (49).

Another study showed improvement in brain blood flow in healthy elderly women (50). 

Animal research has also found that light can be used to locally increase brain blood circulation (93). 

I previously wrote about my experience with low-level laser therapy here.

I use the Platinum LED Bio-450 (Combo Red/NIR) and shine the red and infrared light directly on my forehead. It’s a simple way for me to quickly and naturally increase blood flow to the brain. If you decide to buy and try this device yourself, you can use the coupon code OPTIMAL for a 5% discount.

I also use the Vielight 810, which is an intranasal device with 810 nm of near infrared light. If you decide to buy and try this device yourself, you can use the coupon code JORDANFALLIS for a 10% discount.

LLLT can also support thyroid function and mitochondria function and help with brain fog

6. Vinpocetine

Vinpocetine is a compound from the Periwinkle plant. 

It’s commonly used in Europe to treat cognitive decline, memory impairments, stroke recovery, and epilepsy.

Researchers have found that it increases brain blood flow in both healthy people and stroke victims.

The increase in brain blood flow leads to increased brain oxygen levels and energy production, reduced brain inflammation and improved reaction time (16-25). 

I took this vinpocetine supplement after my last concussion to increase blood flow to the brain and speed up my recovery. 

7. Meditation

Meditation is my favourite relaxation technique and it's linked to increased blood flow in the brain.

In one study, 14 people with memory problems followed a simple 8-week meditation program, and researchers found a significant increase in blood flow to the prefrontal cortex (31). 

Logical memory and verbal fluency also improved after training (31). 

Another study showed that just five days of meditation (30 minutes each day) significantly enhanced brain blood flow (32). 

I use the Muse headband to meditate. It gives you real-time feedback while you meditate. That way, you know how well you are meditating. It makes meditating much more enjoyable.

I previously wrote about it here, and you can get it through Amazon or the Muse website.

8. Resveratrol

Resveratrol is a beneficial antioxidant and anti-inflammatory compound.

Many people know that it’s found in grapes, red wine, raspberries and dark chocolate.


Resveratrol is known to help prevent the development of neurodegenerative diseases.

And researchers are starting to understand why.

Resveratrol can increase BDNF, help restore the integrity of the blood-brain barrier, and support your mitochondria.

But it can also quickly help you get more blood and oxygen flowing to your brain. 

In one study, after taking either 250 or 500 milligrams of resveratrol, study participants experienced a dose-dependent increase in brain blood flow (26). 

Even just 75 mg has been shown to increase brain circulation and cognition (27, 29). 

And a new study published just this year found that chronic resveratrol supplementation increases brain blood circulation in post-menopausal women, improving their cognition and mood (28, 30). 

I take this resveratrol supplement to support the long-term health of my brain. It’s good to know it naturally increase blood flow in the brain as well. You can get the resveratrol I take here or here

9. Dark Chocolate

Most people love chocolate, and your brain loves it too. 

Dark chocolate contains cocoa, which is known to improve blood flow. 

It's one of my favourite foods. 

Research suggests that the flavonoids found in cocoa beans increase blood flow to key areas of the brain for two to three hours after eating them. And this leads to an improvement in cognitive performance and general alertness (33, 35). 

Certain food components like cocoa flavanols may be beneficial in increasing brain blood flow and enhancing brain function among older adults or for others in situations where they may be cognitively impaired, such as fatigue or sleep deprivation.
— Dr. Ian A. Macdonald, PhD, from the University of Nottingham Medical School in the United Kingdom

One study found that flavanol-rich cocoa significant increases the speed of brain blood flow in healthy elderly people (34). 

Another study showed that drinking two cups of hot chocolate a day for 30 days was linked to improved blood flow to the brain and better memory (36). 

Dark chocolate also increases BDNF and reduces cortisol.

It’s important to choose a type of dark chocolate that is at least 70 percent cocoa.

Here is one of my favourite high-quality dark chocolates

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10. Omega-3 Fatty Acids

Omega-3s fatty acids are the highest quality fats for the brain.

They are essential, meaning your body cannot create them and you have to get them from food or supplements.

Making sure you get more omega-3s is one of the most important actions you can take to support your brain and nervous system.

They have been shown in many studies to significantly reduce brain inflammation; improve memory, mood and cognition; and protect against mild cognitive impairment, dementia and Alzheimer's disease.

But they also naturally increase brain blood flow and circulation. 

Research shows that higher omega-3 levels are significantly correlated with higher regional cerebral blood flow (37). 

This is very important research because it shows a correlation between lower omega-3 fatty acid levels and reduced brain blood flow to regions important for learning, memory, depression and dementia.
— Dr. Daniel G. Amen, MD, Amen Clinics

And one study found that omega-3 supplementation, in comparison with placebo, significantly increases brain blood flow (38). 

Omega-3 fatty acids are found in cold water fish such as salmon, black cod, sablefish, sardines and herring.

Unfortunately, most people don't consume enough of these foods.

So supplementing with krill oil should be considered. Krill oil is a special kind of fish oil that readily crosses the blood-brain barrier. I’ve tried tons of fish oil supplements, and I recommend krill oil over all the others.

I take this krill oil supplement. I feel slightly depressed when I stop taking it. I actually notice the difference.

11. Acupuncture

Acupuncture is an alternative treatment that has been shown to increase brain blood flow and circulation.

In a randomized controlled trial, 17 post-stroke patients did acupuncture or sham acupuncture for 20 minutes.

The researchers found that the speed of blood flow to both hemispheres of the brain significantly increased during and after acupuncture treatment (39, 42). 

Research has also shown that acupuncture can significantly improve cerebral blood flow and circulation in animals (40-41, 43). 

I’m a really big fan of auricular acupuncture, which is when the needles are inserted into ear.

In my experience, ear acupuncture is more effective than regular acupuncture. I’m not sure why. I just personally noticed more benefits from ear acupuncture. 

I’d recommend trying to find a acupuncturist in your area who provides ear acupuncture.

Ear acupuncture really helped me the first time I weened off antidepressants. I was surprised.

At the end of each appointment, my practitioner would secure these small black seeds on my ear. 

I also use this acupuncture mat at home to relax before bed.

Acupuncture also stimulates the vagus nerve

12. Chewing Gum

Research reveals that chewing increases brain blood flow (44). 

As a result, chewing can improve cognitive performance and brain function, including working and spatial memory, and increases the level of arousal and alertness during a cognitive task (45). 

If you chew gum, make sure it’s aspartame-free, like this one.

Chewing gum also reduces cortisol

13. Acetyl-L-Carnitine (ALCAR) 

Acetyl-L-carnitine (ALCAR) is an acetylated form of the amino acid carnitine. 

It’s known to help reverse neurological decline by increasing levels of acetylcholine in the brain.

It’s often used as a brain booster by people of all ages because it support brain cells and increases alertness.

It’s also been shown to be very effective at alleviating chronic fatigue and improving mood by supporting mitochondrial function.

Considering it does all this, it’s not surprising that researchers found that it can enhance brain blood flow in people who have had a stroke (46-47). 

I personally find ALCAR improves my mental energy and enhances my cognitive function.

ALCAR is included in the Optimal Brain supplement

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14. Nitrates

Nitrates are both naturally-occurring compounds found in soil and plants.

High levels of nitrates are found in foods such as beets, celery, cabbage, spinach, and other leafy green vegetables.

Research shows that a nitrate-rich diet can increase blood flow to the frontal lobe of the brain, improving cognitive function and protecting against cognitive decline (51-52). 

Beet juice is a particularly rich source of nitrates, and studies have found that it can help widen blood vessels and increase oxygen and blood flow to the brain (53-54, 56). 

A double-blind, placebo-controlled trial even found that beet juice can improve cognitive performance by increasing brain blood flow (55). 

There have been several very high-profile studies showing that drinking beet juice can lower blood pressure, but we wanted to show that drinking beet juice also increases perfusion, or blood flow, to the brain. There are areas in the brain that become poorly perfused as you age, and that’s believed to be associated with dementia and poor cognition.
— Dr. Daniel Kim-Shapiro, PhD

I don’t really enjoy the taste, but every so often I do drink beet juice during cognitively-demanding tasks. 

Here is a good organic beet juice

15. Drink Less Coffee (Or Take Theanine)

Coffee is generally excellent for brain health. There is a lot of research showing it is very healthy and can be protective against dementia.

However, studies also show that if you want to get more blood flowing to your brain and within you brain, you’re better off avoiding or limiting caffeine


Researchers have found that caffeine significantly reduces brain blood flow by 20 to 30% depending on the study and dosage (74-77). 

The good news is that taking the amino acid theanine can reduce the negative brain blood flow effects of caffeine (78-79). 

That’s why I take this theanine supplement with my morning coffee

I also sometimes take breaks from drinking coffee to normalize brain blood flow and circulation. 

Taking the herb rhodiola can make quitting caffeine much easier because it helps reduce withdrawal symptoms.

Lastly, you could also try supplementing with the whole coffee fruit, instead of drinking coffee.

The coffee bean is usually separated from the coffee fruit for roasting. When this happens, the surrounding coffee fruit is then thrown away. 

That’s a problem because the coffee fruit contains several healthy compounds not found in coffee beans themselves.

In fact, scientists have discovered that ingesting coffee fruit concentrate significantly increases brain function. 

That’s why it’s included in Optimal Brain.

16. Piracetam

Piracetam is a “nootropic”, which means it’s a supplement that enhances cognition.

It provides a mild boost in brain function, and it’s regularly used in Europe, Asia and South America to treat cognitive impairment. 

A meta-analysis found that piracetam improves general cognition when supplemented by people in a state of cognitive decline (84). 

Research also shows that it can increase brain blood flow in humans and animals (85-91). 

Here is a good piracetam supplement. I used to take it every day but I don’t need it at all anymore.

Phenylpiracetam is an advanced version of piracetam and I found it to be even better because it improves mood and reduces anxiety. It’s also been shown to reverse the depressant effects of benzodiazepines (81-83).

You can get it here

Both piracetam and phenylpiracetam work best if you take them with a source of choline, such as CDP-Choline and Alpha GPC (80). 

17. Ketogenic Dieting

A ketogenic diet is a very low-carbohydrate diet.

To follow it correctly, you need to eat less than 50 grams of carbohydrates per day.

This means you need to avoid all carbohydrate-rich foods, including grains, sugar, and even potatoes, legumes and fruit.

When you restrict carbs this much, your body enters ketosis, a metabolic state in which your body and brain run on fatty acids and “ketones” instead of glucose.

Researchers have found that ketones are a therapeutic option in traumatic brain injury because they can increase brain blood flow by 39% (100). 

Studies have also shown that ketones increase cerebral blood flow by 65% in animals (103-104). 

And caloric restriction also increases ketones, which preserves cerebral blood flow in aging rats (102). 

I follow a ketogenic diet every so often, but not for long stretches of time due to resulting hormone problems.

I do take Optimal Ketones every day, which are exogenous ketones that get your body into a state of ketosis very quickly. They immediately increase my mental clarity, without having to restrict carbs.

Ketones can also support mitochondria health, promote the regeneration of myelin, and increase the growth of new brain cells

18. Citicoline

Citicoline (also known as CDP-Choline) is one of the most bioavailable forms of choline.

You need to get choline from food, but most people do not get enough because very few foods in the Western diet contain it.

That’s why supplementation is often necessary.

Citicoline is a supplemental form of choline that has anti-inflammatory and neuroprotective effects.

It enhances the synthesis of acetylcholine and dopamine (two neurotransmitters that are critical for optimal brain function) and increases the number of acetylcholine and dopamine receptors in your brain (105-110). 

It’s also been shown to improve cognitive function by increasing the rate of brain blood flow (114-116). 

A double-blind placebo-controlled study concluded that Citicoline improves cognitive performance in patients with Alzheimer’s disease by increasing brain blood flow (113). 

Citicoline significantly improves my focus and mental energy. It's included in the Optimal Brain supplement

You can also find some choline in foods such as beef liver and egg yolks, but the effects of Citicoline are much more noticeable and immediate because it quickly passes the blood-brain barrier and supports your brain.  

Citicoline also promote the regeneration of myelin, support the blood-brain barrier, and help reverse brain damage.

19. Blueberry Juice

Drinking blueberry juice improves cognitive function in the elderly, according to research published this year (123-125). 

One way it improved brain health was by increasing oxygen levels and increasing blood flow to the brain.

The participants had improvements in working memory while doing cognitive testing.

In this study we have shown that with just 12 weeks of consuming 30ml of concentrated blueberry juice every day, brain blood flow, brain activation and some aspects of working memory were improved in this group of healthy older adults.
— Dr. Joanna Bowtell

The amount of juice in the study was equivalent to 230g of blueberries.

The researchers believe that the flavonoids in blueberries were responsible for the positive effects.  


20. Pyrroloquinoline Quinone (PQQ)

Pyrroloquinoline quinone (PQQ) is a vitamin-like enzyme and potent antioxidant found in plant foods that can improve cognitive function.

Researchers have found that supplementing with PQQ can increase blood flow to the prefrontal cortex (117-118). 

One study found that PQQ can prevent the reduction of brain function in elderly people, especially in attention and working memory, by increasing brain blood flow (119). 

I cycle this BioPQQ supplement with my other mitochondrial-support supplements

21. Intranasal Insulin

Insulin is one of the hormones that significantly affects brain function.

It's been shown to pass the blood-brain barrier and act on insulin receptors directly within the brain.


In a new therapeutic approach, commercially-available insulin (Novalin R) is prepared and added to nasal spray bottles - like these ones - and sprayed and inhaled through the nose to support brain and mental health.

Intranasal insulin has been reported to significantly enhance memory, increase mental energy, reduce brain fog, improve mood, and lower anxiety and stress levels.

One possible mechanism is by increasing brain blood flow and circulation.

Research shows that intranasal insulin increases regional cerebral blood flow in the insular cortex (120, 122). 

And in a randomized, double-blinded, placebo-controlled, intranasal insulin improved brain blood flow in older adults (121).  

If you’re interested in learning more, I previously wrote a full article about intranasal insulin.

22. BONUS: Other Promising Nutrients and Herbs

Researchers have found that the following compounds can increase cerebral blood flow in animals, but I couldn’t find any research showing that it will do the same in humans. However, they are worth experimenting with as many of them have supported my brain and mental health over the years.


Enjoy This Article? You Might Also Like My FREE Food Guide for Optimal Brain and Mental Health!

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Live Optimally,

Jordan Fallis

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Medically reviewed by Dr. Robert Blake Gibb, MD

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How to Improve Your Brain Function with An Oxygen Concentrator

Insufficient oxygen means insufficient biological energy that can result in anything from mild fatigue to life threatening disease. The link between insufficient oxygen and disease has now been firmly established.
— Dr. W. Spencer Way, Journal of the American Association of Physicians

Oxygen is absolutely essential for life, and your brain depends it more than any other part of your body.

Your brain weighs about 2% of your body weight.

But it consumes about 20% of the oxygen you breathe.

Your brain cells need to get enough oxygen to produce energy and function optimally.

If they don’t, they can start to deteriorate, leading to poor memory and concentration, low mood, lack of energy and drive. 

I personally use oxygen therapy with an oxygen concentrator to support and optimize my brain function. 

This post discusses oxygen therapy, the benefits, how I use it, and how it could help you. 

It’s a great way to boost cognitive function, memory and energy.

Read on to learn more. 

Types of Oxygen Therapy

Oxygen therapy is the use of supplemental oxygen to treat a variety of medical conditions.

Air is typically 21% oxygen by volume, but oxygen therapy increases the amount.

Hyperbaric oxygen therapy (HBOT) is the most well-known type of oxygen therapy, and it allows patients to inhale 100% pure oxygen in a total body chamber.


HBOT is often used by professional athletes for recovery and performance.

But it’s expensive and not available to most people. 

Luckily, it’s not the only option available to you. 

Normobaric oxygen therapy (NBOT) is much less expensive, and it’s easily accessible and non-invasive. I personally use NBOT at home. 

Similar to HBOT, NBOT brings a higher percentage of oxygen into the body and can bring major benefits to your brain and cognition.

Researchers have found that both normobaric and hyperbaric oxygen therapy increase the amount of oxygen that is delivered to the blood and brain (1-2). 

With normobaric therapy, oxygen can be delivered via an oxygen concentrator

An oxygen concentrator is a machine that separates oxygen from room air, and then delivers the concentrated oxygen through a nasal cannula or mask.

I use this oxygen concentrator. You can get it here or here.  

Make sure you read the “My Experience” section below where I discuss how to use it. .

Why You Might Need Oxygen Therapy and How It Works

Hypoxia is a condition in which the body or a region of the body is deprived of adequate oxygen supply.

If this happens to you, you can end up with mitochondria dysfunction and poor brain function. 

But how do you know?

You can use an oxygen saturation monitor to measure and monitor your blood oxygenation levels. I use this monitor. It’s the best and most accurate oxygen saturation monitor that is often used by medical professionals, and freely available to the public.

Your blood oxygen saturation levels (SpO2) should measure 99-100% if you want to feel optimal.  


There are a number of reasons why your body and brain might not be getting enough oxygen:

  • Sedentary lifestyle and lack of exercise

  • Shallow breathing – Most people today don’t breathe well and are shallow breathers.

  • Chronic stressStress and anxiety can also affect your breathing. If you're stressed and anxious, you end up taking more shallow breaths. Your sympathetic “fight or flight” nervous system is chronically active, and this reduces the amount of oxygen that reaches your brain.

  • Abnormal blood pressure – Both high and low blood pressure can be problematic and may suggest that blood is not optimally flowing to your brain. If blood flow to your brain is poor, oxygen levels in your brain will also be suboptimal.

Normobaric oxygen therapy can help you if you’re struggling with any of these problems.

It can also help if you’re recovering from a concussion or brain injury or some sort of toxic exposure (e.g. mold). 

Neuroplasticity and neurogenesis require oxygen, and increasing the delivery of oxygen to the body and brain supports the healing process of damaged tissue.

Normobaric oxygen therapy has been shown to work by increasing brain blood flow, reducing permeability of the blood-brain barrier, and it may even have cholinergic properties (3-8). 

Researchers have concluded that the “neuroprotective role of normobaric oxygen therapy is extremely promising” (9). 

They have also found that it can lead to a number of positive cognitive outcomes, which I'll explore below. 

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1. Normobaric Oxygen Therapy Improves Memory and Recall

In their book Advances in Natural Medicines, Nutraceuticals, and Neurocognition, Dr. Andrew Scholey and Dr. Con Stough state that normobaric oxygen therapy is an effective memory enhancer

Research has shown that oxygen administration leads to improved long-term memory compared to a control group of normal air-breathing.

Several clinical studies also show that concentrated oxygen significantly enhances memory formation and recall in adults (10-11, 16-17). 

In one study, inhalation of oxygen immediately prior to learning a word list resulted in a significant increase in the average number of words recalled 10 minutes later (14). 

In other studies, subjects who received oxygen remembered shopping lists and faces better than subjects that didn’t receive oxygen (12-13, 18). 

Researchers have also found significant positive correlations between changes in oxygen saturation and memory performance (15). 

2. Normobaric Oxygen Therapy Improves Cognitive Performance

Research shows that concentrated oxygen significantly enhances cognitive performance (19-20, 29). 

And it doesn’t just improve cognitive function in the elderly; it also enhances cognitive processing in young adults (21-23). 

In one study, students that inhaled oxygen while playing a computer game performed much better compared to students who didn’t inhale any additional oxygen (26). 

In two other studies, researchers found that the inhalation of 30% oxygen improved cognitive functioning and performance by activating several brain areas (24-25). 

Oxygen administration appears to facilitate cognition most effectively for tasks with a higher cognitive load.
— Advances in Natural Medicines, Nutraceuticals, and Neurocognition

They concluded that breathing a higher concentration of oxygen increases blood oxygen levels in the brain, which then supports cognition (24-25). 

And other researchers have found significant correlations between blood oxygen levels and cognitive performance (27-28). 

3. Normobaric Oxygen Therapy Enhances Accuracy

Several studies have found that normobaric oxygen therapy can also increase your accuracy when doing tasks. 

Two studies found that 30% and 40% oxygen administration significantly enhanced accuracy rates compared to 21% oxygen (normal air). It did this by increasing oxygen levels in the blood, which then stimulated activity in the brain (31-32). 

As the difficulty of the task increased, the difference in the accuracy rate between 40% and 21% oxygen administration also increased (33-34). 

And researchers found a positive correlation between task performance and oxygen levels in the brain (33-34). 

Other research has found that 30% oxygen administration enhances accuracy rates during verbal tasks by activating specific areas of the brain (35-36). 

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4. Normobaric Oxygen Therapy Reduces Reaction Time

People who receive normobaric oxygen therapy also have faster reaction times (37-38). 

In one study, participants performed visual matching tasks under 43% oxygen or 21% oxygen (normal air).

Researchers reported a significant decrease in reaction time in the presence of 43% oxygen (39).

The researchers hypothesized that normobaric oxygen therapy increases oxygen levels in the blood, which then leads to more available oxygen in the brain (39). 

Another follow-up study confirmed that response time decreases during normobaric oxygen therapy due to the increase in blood oxygen levels (40). 

Normobaric oxygen therapy has even been shown to reduce reaction time in children with attention deficit hyperactivity disorder (ADHD) (41). 

5. Normobaric Oxygen Therapy Increases Energy

Despite comprising only 2 percent of the body’s weight, the brain gobbles up more than 20 percent of daily energy intake.

All cells within your body need oxygen, particularly your brain cells.

They require a lot of oxygen to produce energy. 

In fact, your energy levels depend on how much oxygen you have and how well your mitochondria utilize it.

If your brain doesn’t get enough oxygen, it simply won’t function properly, and you’ll end up feeling tired. 

But normobaric oxygen therapy can increase energy.

Research shows that it "decreases fatigue and reduces feelings of sleepiness" (51). 

6. Normobaric Oxygen Therapy Improves Neurological Function After Stroke

Researchers say that normobaric oxygen therapy is a promising therapy for stroke patients. 

It’s been shown to reduce brain swelling and blood-brain barrier permeability and increase brain blood flow after stroke (42-43). 

One study found that normobaric oxygen therapy significantly improved neurological functions in patients with acute ischemic stroke (44). 

Other researchers have found that normobaric oxygen therapy increases oxygen supply to damaged tissues and improves outcomes after stroke, in both animals and humans (45-46). 

As a non-pharmaceutical and non-invasive treatment, normobaric oxygen therapy is “worthy of notice” (47). 

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7. Oxygen Therapy May Help Reverse Brain Damage After Traumatic Brain Injury

Researchers found that a combination of normobaric and hyperbaric oxygen therapy reversed brain damage in 2-year-old girl who nearly drowned in a swimming pool.

She received normobaric oxygen treatment (twice daily for 45 minutes by nasal cannula), and doctors witnessed significant improvements in her neurological function (48-49). 

Normobaric oxygen therapy alone improved the girl’s neurological function before she started hyperbaric oxygen therapy (48-49). 

She eventually made a full recovery with both types of oxygen therapy. 

Researchers have also said that the “neuroprotective role of normobaric oxygen therapy is extremely promising” for traumatic brain injury (50). 

I’ve also seen multiple studies with rats and mice showing that normobaric oxygen therapy reduces brain swelling and brain damage.

8. Other Possible Benefits (with Less Research Behind Them)

  • Increases attention and vigilance – Oxygen administration significantly improved performance on several measures of attention and vigilance (52).

  • Reduces inflammation – Oxygen levels play a critical role in determining the severity of the inflammatory response and ultimately the effectiveness of anti-inflammatory drugs (53-54).

  • Improves hand-eye coordination (55).

  • Increases positive sense of wellbeing (56).

My Experience with Normobaric Oxygen Therapy

If you use oxygen for 20 minutes, muscles become loosened, headaches and stress seem to disappear, there is a renewed energy and a feeling of relaxation.
— Dr. Richard de Andrea


I was first introduced to oxygen therapy through an integrative doctor I know.

At the end of each appointment with him, I would use his oxygen concentrator for about 15-20 minutes. He used this oxygen concentrator

I eventually decided to buy my own oxygen concentrator and now regularly use it at home. 

There is a dial for adjusting the flow of oxygen and the port is located on the upper right of the machine.

There is a dial for adjusting the flow of oxygen and the port is located on the upper right of the machine.

I bought this oxygen concentrator. You can get it here or through Amazon. I'll discuss how it has helped me below.

The oxygen from the concentrator is supplied through an nasal canula. It’s completely non-invasive and painless, and it’s become one of my favourite tools for supporting my brain.

I use it for about 20 to 30 minutes, a few times each week. I often do this while exercising on this indoor stationary bike. Sometimes I use it without exercising on the bike. 

I also use it for about 3 to 5 minutes as needed, usually when doing work. 

During a session, I use this oxygen saturation monitor to measure my blood oxygenation levels. 

Your blood oxygen saturation levels (SpO2) should measure 99-100%. I see mine increase and max out while using the concentrator

My oxygen concentrator delivers up to 5 litres of oxygen per minute. I usually set mine somewhere between 3 and 5 litres per minute. 

But I would recommend starting lower and working your way up. 

Similar to low-level laser/light therapy, oxygen therapy is somewhat experimental. You need to find the right “dosage” for yourself.

Benefits and What I’ve Noticed


I've had good results with concentrated oxygen therapy and it has surprisingly increased the quality of my life. 

One of the main things I notice is that it feels like it puts energy back into my body every time I use it.

One of my clients uses it whenever she gets brain fog, and it clears it up. Another client uses it when she gets a headache and the headache disappears within 10 minutes.

It also does an incredible job of getting rid of hangovers. They essentially go away if you use the concentrator the morning after drinking. You just immediately feel like a completely new person.

Here are some other benefits I’ve experienced:

Keep in mind that this is my personal experience (and the experiences of a couple of clients). There really is no guarantee that you’ll experience the same results, but it’s worth a try if you’re sick and other therapies aren’t improving your brain function. 

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Combining Oxygen Therapy with Other Therapies

I also combine oxygen therapy with other therapies and supplements for their synergistic effects. 

Researchers have found that combining normobaric oxygen therapy with the following therapies leads to better results (57-59):

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Live Optimally,

Jordan Fallis

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Medically reviewed by Dr. Fred Hui, MD, CCFP, CAFC

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