Nasal breathing

Nasal breathing supports better oxygenation, nitric oxide production, and overall performance.

Strong consensus

For general breathing practice to improve respiration.

Sourced from the doctors, PhDs and clinicians behind Entrain. Updated

The strongest voice

“nasal inhalation will first of all it will moisten and cool the air number one so it will filter the air for you so you're gonna have less environmental allergies ... it also creates nitric oxide release as well”

a Princeton-trained molecular biology PhD · source video · 00:00:10

In their own words

One faithful sentence per source, linked to the moment it was said; quiet chips mark where money is involved.

a Princeton-trained molecular biology PhD recommend
“Nasal breathing filters air, stimulates nitric oxide production, and supports metabolic and dental health”

a Princeton-trained molecular biology PhD · source video · 00:00:10

a licensed acupuncturist and clinician-educator recommend
“Intentional nasal breathing at a steady pace can make a huge difference in breathing quality.”

a licensed acupuncturist and clinician-educator · source video · 00:08:30

a former research biochemist recommend
“Nasal breathing supports efficiency and endurance during long training sessions.”

a former research biochemist · source video

a certified naturopath recommend
“Nasal breathing supports nitric oxide production and nervous system regulation.”

a certified naturopath · Instagram reel

a performance scientist with a psychology PhD conditional
“Taping the mouth can help maintain nasal breathing which is ideal for fitness and overall health.”

a performance scientist with a psychology PhD · Instagram reel

a performance scientist with a psychology PhD recommend
“Nasal breathing relieves cardiovascular pressure, lowers resting heart rate, and increases heart rate variability.”

a performance scientist with a psychology PhD · Instagram reel

Worth discussing with your GP, especially if you take medication or are pregnant. Entrain describes what is publicly taught; it does not prescribe.

Natural environment exposure

Time in nature is a simple, effective way to support mental and physical well-being.

Strong consensus

“spending time in the natural world or or having opportunities to kind of commune with other species or spend time in restorative natural environments is not something we can do without”

a licensed acupuncturist and clinician-educator · source video · 00:14:32

Zone 2 cardio

Zone 2 cardio is foundational for heart, energy, and mitochondrial health.

Strong consensus

“Exercise is one of the best ways is blood flows across the glycoalics that sheer stress releases nitric oxide. Zone two training is where I would start.”

a board-certified cardiologist · source video · 00:12:30

Sweating

Sweating through movement or heat supports natural detoxification and can help with overall vitality.

Strong consensus

“We remove or deplete deuterium by sweating pooing weeing and also sunlight it'll deplete deuterium as well”

a molecular biology PhD · source video · 00:16:50