Breathing technique

Breathing techniques can calm nerves, support oxygenation, and help with recovery.

Strong consensus

For cold water immersion practice.

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

The strongest voice

“my cough basically totally disappeared just from slow slowly inhaling and exhaling through the nose with no mouth breathing”

a nutritional sciences PhD · source video · 00:52:00

In their own words

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

a former research biochemist recommend
“Teaching breathing techniques helps kids calm down quickly when upset or hurt.”

a former research biochemist · source video · 00:03:10

a molecular biology PhD recommend
“Understanding the brain mechanism helps calm the logical brain and reduce panic at night.”

a molecular biology PhD · TikTok video

a registered holistic nutritionist recommend
“Breath regulation helps shift from sympathetic fight or flight to parasympathetic rest and digest, making cold exposure easier”

a registered holistic nutritionist · source video · 00:18:00

a performance scientist with a psychology PhD recommend
“It quickly lowers stress, resets focus, and helps the body relax by deactivating the nervous system.”

a performance scientist with a psychology PhD · Instagram reel · 00:00:00

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