Dr Andrew Huberman: The One Daily Practice Everyone Should Do, Training Your Brain and Reducing Anxiety #227
Dr. Andrew Huberman, a Stanford neuroscientist, discusses how vision and breathing influence human performance and brain states. He shares actionable insights on using morning light exposure, panoramic vision, and specific breathing techniques to optimize health, focus, and reduce anxiety.
Deep Dive Analysis
14 Topic Outline
The Visual System as a Foundational Health Lever
Light Exposure and Circadian Clock Coordination
Practical Morning Light Viewing for Optimal Health
Avoiding Evening Light to Protect Sleep and Circadian Rhythm
Impact of Modern Screens on Vision and Well-being
Benefits of Panoramic Vision and Self-Generated Optic Flow
Using Visual Focus as a Training Tool for Attention
The Nervous System's Role in Health and Regulation
Understanding and Leveraging the Stress Response
The Physiological Sigh for Immediate Stress Reduction
Prioritizing Actions and Behaviors Over Thoughts and Feelings
Nervous System Flexibility and Building Resilience
Andrew Huberman's Personal Supplement Routine
Final Advice for Navigating Life's Challenges
8 Key Concepts
Circadian Clock Function
Every cell in the body has a 24-hour oscillator or clock that needs to be coordinated by a master clock in the brain. Disruption of this system, often due to improper light exposure, can lead to widespread issues like digestive problems, mental focus issues, depression, and anxiety.
Intrinsically Photosensitive Cells
These are a special class of nerve cells located in the neural retina at the back of the eyes. They connect directly to the suprachiasmatic nucleus (the master circadian clock in the hypothalamus) and are the primary mechanism by which light sets the body's internal clocks.
Cortisol Pulse
Cortisol is a vital hormone released every 24 hours that provides alertness and focus. Viewing bright light early in the day ensures this cortisol pulse occurs at the appropriate time, providing energy for 10-14 hours, whereas a late-shifted pulse is linked to chronic depression and sleep issues.
Melatonin Inhibition
Melatonin is a hormone released by the pineal gland that helps transition the body into sleep. Its release is powerfully inhibited by light, especially bright artificial light viewed in the evening or late at night, which can disrupt sleep patterns and the entire circadian schedule.
Panoramic Vision
This is a mode of vision where you expand your gaze to see more of the surrounding space without moving your head or eyes. It has a relaxing effect on the nervous system, helps decelerate stress, and can increase situational awareness and reaction times by engaging faster-transmitting neurons.
Self-Generated Optic Flow
This refers to the visual experience of the world moving past you when you are moving forward, such as walking, running, or biking. This process is known to directly and powerfully inhibit the activity of the threat reflex, including brain areas like the amygdala, thereby reducing fear and anxiety.
Physiological Sigh
A natural breathing pattern involving two rapid inhales through the nose (one long, one short) followed by a long, complete exhale through the mouth. This technique quickly re-inflates deflated lung sacs (alveoli) and offloads carbon dioxide, providing an immediate reduction in stress and anxiety.
Nervous System Flexibility
This concept describes the nervous system's ability to adapt and optimally utilize its functions, allowing smooth transitions between states of alertness, focus, relaxation, and sleep. It's about having a 'calibrated seesaw' that can easily move between activation and calm, rather than getting stuck in one state.
8 Questions Answered
The visual system, specifically the eyes, are the only part of the central nervous system outside the cranial vault, providing the primary way the nervous system gains knowledge about external circumstances and coordinates all bodily functions, including the immune and endocrine systems.
Viewing bright light, ideally sunlight, within 30-60 minutes of waking sets the master circadian clock in the brain, coordinating all body cells, stimulating an early cortisol pulse for energy and focus, and initiating a 16-hour countdown to melatonin release for better sleep.
Bright light, particularly between 10 p.m. and 4 a.m., powerfully inhibits melatonin release, which is crucial for transitioning into sleep, and can disrupt the entire clock schedule due to increased retinal sensitivity during these hours.
Yes, excessive close-up viewing on screens can cause the eyeball to lengthen, leading to myopia. Spending at least two hours a day outside, even while using screens, can significantly reduce the incidence of myopia.
Walking or moving forward while viewing things in the distance (self-generated optic flow) directly and powerfully inhibits brain areas associated with fear and anxiety, such as the amygdala, providing anxiety relief.
Performing a 'physiological sigh' – two inhales through the nose back-to-back, followed by a long, complete exhale through the mouth – immediately reduces stress and anxiety by re-inflating lung alveoli and efficiently offloading carbon dioxide.
While thoughts and feelings are important, physical actions and behaviors provide concrete, measurable tools to influence one's state of mind, offering a more direct and accessible route to recalibrate the nervous system and achieve a better 'stance' in life.
A mentally and physically healthy person is someone who can be in action when needed, relax when needed, focus when needed, and sleep when needed, demonstrating flexibility and control over their nervous system.
23 Actionable Insights
1. Coordinate Body Clocks with Light
Ensure light arrives at your eyes at appropriate times of day and is absent at other times to coordinate all cells and systems of your body, as disruptions are linked to various health issues including digestive, mental focus, depression, and anxiety.
2. Morning Sunlight Exposure
View bright light, ideally sunlight, for 5-10 minutes (or longer on overcast days) within 30-60 minutes of waking, without sunglasses or through windows, to set your body’s master circadian clock, boost morning cortisol for energy and focus, and improve sleep quality later that night.
3. Dim Evening Lights
Dim lights in the evening and late hours, especially between 10 p.m. and 4 a.m., and avoid bright screens, as retinal sensitivity increases at night, and even low light can disrupt melatonin release and your circadian rhythm.
4. Physiological Sigh for Stress
When feeling stressed or anxious, perform a physiological sigh by taking two quick, deep inhales through the nose back-to-back, followed by a long, complete exhale through the mouth, to immediately reduce stress by re-inflating lung alveoli and offloading carbon dioxide.
5. Expand to Panoramic Vision
Practice panoramic vision by dilating your gaze to see more of the space around you without moving your head or eyes, which has a relaxing effect, reduces stress, and enhances situational awareness and reaction times.
6. View Distant Objects Daily
Periodically view objects in the distance, beyond screens or walls, ideally a horizon, to reduce eye strain, prevent myopia, improve mood, and enhance metabolic function.
7. Self-Generated Optic Flow
Engage in self-generated forward motion like walking, jogging, or biking outdoors without staring at your phone, as the visual world slipping by powerfully inhibits the brain’s threat reflex and reduces anxiety.
8. Take Short Focus Breaks
Incorporate 10-second micro-breaks during high-attentional activities (learning, deep work) to allow the brain to store information faster, decompress, and return with heightened focus.
9. Train Visual Focus
To improve concentration, place a small target (e.g., a crosshatch on paper) at your computer’s distance and focus your vision on it, blinking as seldom as possible for about 60 seconds, to adjust your visual and mental focus.
10. Huberman’s Morning Visual Training
Practice a sequence of visual focus: close eyes and focus internally (3 breaths), open eyes and focus on hand (3 breaths), focus on a distant object (3 breaths), panoramic vision (3 breaths), then return to internal focus and a crosshatch, to train your system for better transitions and focus throughout the day.
11. Intentional Nervous System Training
Deliberately engage in practices that force specific changes onto your nervous system, rather than letting passive living dictate its changes, to leverage its capacity for positive adaptation and build resilience.
12. Action Over Thoughts/Feelings
Prioritize physical actions and behaviors to influence your mental and physical health and performance, especially when overwhelmed, as physical practices provide concrete tools to recalibrate your state of mind.
13. Cold Exposure for Immunity
Engage in deliberate cold showers for three minutes every two or three days, or practice cyclic hyperventilation, to cause adrenaline release which strengthens the immune system and increases resistance to infections.
14. Magnesium & Apigenin for Sleep
If struggling with sleep, consider taking magnesium threonate or bisglycinate, and 50 milligrams of apigenin (chamomile extract), as these non-addictive supplements can help improve sleep onset and duration.
15. Yoga Nidra / NSDR for Sleep
Utilize Yoga Nidra (a 30-minute script) or the Reveri.com self-hypnosis app, both free resources, as non-sleep deep rest (NSDR) practices to improve your ability to fall asleep or return to sleep if you wake up at night.
16. EPA for Mood & Antidepressant Effect
Supplement with one to three grams of EPA essential fatty acids daily, especially if you don’t consume fatty fish, as 1-2 grams of EPA has shown antidepressant effects comparable to SSRIs and can lower the required dosage of such medications.
17. Fermented Foods for Gut Health
Consume one to four servings of fermented foods daily to improve your gut microbiome and reduce inflammatory pathways, supporting overall health.
18. Scientific Supplement Experimentation
Approach supplement use scientifically by introducing new compounds one at a time, observing their effects, and consulting a physician, rather than taking many at once, to determine what works best for your individual needs.
19. Journaling for Emotional Release
Engage in daily journaling, even if informal, to externalize anxieties and stresses onto paper, which can help expunge them and provide mental relief.
20. Filter Interactions with Empathy
When encountering aggressive or concerning comments, especially online, filter them through the understanding that many people struggle with mental health challenges, which can help prevent personal triggering and foster a more compassionate perspective.
21. Use Ring Light for Morning Light
As a low-cost alternative to sunlight when unavailable, use a blue ring light (like those used by YouTubers) at your breakfast table or while working in the morning to stimulate your circadian system.
22. Kids’ Screen & Myopia Prevention
For children, dim screens, keep room lights low, and remove phones/tablets from rooms at night; also encourage two hours of outdoor time daily (even with homework) to significantly reduce the incidence of nearsightedness (myopia).
23. Exercise Outdoors Without Sunglasses
If you exercise, try to do it outside without sunglasses to maximize the benefits of natural light exposure on your visual system and overall well-being.
8 Key Quotes
The visual system is unique in that it's the only piece of the central nervous system that resides outside the cranial vault.
Andrew Huberman
Light early in the day is the primary signal by which that clock setting mechanism occurs.
Andrew Huberman
When you view light, even if you go into the bathroom in the middle of the night and you turn on really bright lights, that quashes the levels of melatonin that are released from the pineal.
Andrew Huberman
Walking forward or biking forward or jogging forward, provided that your visual system isn't staring at your phone the whole time, and no, unfortunately, this won't work on a treadmill, when you do that, you're actually creating an anxiety relief.
Andrew Huberman
Trying to control your thoughts with thoughts is like trying to grab fog. It's very, very difficult.
Andrew Huberman
Your feelings and your thoughts actually are pretty meaningless in the long run, but what you do and what you say has a profound impact on you and other people.
Andrew Huberman
A mentally healthy person and a physically healthy person is somebody that can be in action when they need to be in action, can relax when they need to relax, can focus when they need to focus and can sleep when they need to sleep.
Andrew Huberman
The truth is that there is no magic stork or fairy or pill or anything that's going to be handed to us or deployed that's going to take care of our challenges. We are, we are all responsible for our immediate wellbeing.
Andrew Huberman
4 Protocols
Morning Light Viewing Protocol
Andrew Huberman- Get outside within 30 minutes to an hour of waking, ideally sooner.
- View bright light, ideally sunlight, for about 5 to 10 minutes.
- Do not wear sunglasses; corrective lenses (contacts or glasses) are fine.
- Do not stare directly at the sun; avoid any light that is painful to look at.
- If there is cloud cover, still go outside, as it's far better than artificial light.
- If you wake up before the sun comes out, turn on as many bright artificial lights as you can, then go outside once the sun is out.
- Avoid viewing light through a window or car windshield, as it filters necessary wavelengths and takes significantly longer to set the clock.
- If you miss a day, try to get twice as much time outside the next day.
- Do not wear blue blockers in the morning and throughout the day, as blue wavelengths are crucial for setting the circadian clock.
Evening Light Avoidance Protocol
Andrew Huberman- Dim the lights in the evening and late hours.
- Avoid bright lights between approximately 10 p.m. and 4 a.m.
- Ideally, keep lights low in your physical environment, using table lamps, lights near the floor, firelight, or candlelight, as these are less disruptive to melatonin.
Visual Training for Focus and Calm
Andrew Huberman- Close your eyes and concentrate on your internal state (interoception), breathing three times.
- Open your eyes, stare at your hand or something at arm's length, focus your visual attention there, and breathe three times.
- Look at something far in the distance (e.g., across the street, down the street, or a horizon), and breathe three times.
- Shift into panoramic vision by dilating your gaze to see more of the space around you without moving your head or eyes, and breathe three times.
- Bring your attention back to your internal landscape, then focus on a small point (like a crosshatch on paper) before transitioning into work or other activities.
Physiological Sigh for Stress Reduction
Andrew Huberman- Take a big, long inhale through the nose.
- Immediately follow with a sharp, tiny second inhale through the nose, squeezing in a little bit more air.
- Perform a long, complete exhale through the mouth.
- Repeat this sequence just once, or two to three times if needed, to immediately reduce stress and anxiety.