Hack your body’s natural Mammalian Dive Reflex which lowers your heart rate and blood pressure when exposed to cold water.
The Mammalian Dive Reflex is a set of reflexes that are activated when our face is cooled or if we hold our breath. The reflex is an amazing physiological mechanism which enables the body to continue and survive in lower levels of oxygen. The slowing of the heart happens pretty fast once the face is exposed to cold water.
The trigeminal facial nerves transmit the information to the brain quickly causing bradycardia and peripheral vasoconstriction And the colder the water is the faster it will work. Because the diving reflex innervates the vagus nerve your pulse will drop and your body will relax.
So here’s our Sleep Hack;
- About 30 minutes before bed grab a nice sized bowl of ice water and soak a few washcloths.
- Use those washcloths to wash and soak your face with for 5-10 minutes.
- Then go to bed as usual and enjoy improved sleep from this amazing hack you can use at home and while travelling.