Are you in chill mode or fight/flight? I've successfully achieved a 12 year age reversal

Well SupportedUsing a vagus nerve stimulating device on the neck one hour before bed may help with falling back asleep.

Partially SupportedHeart rate variability is a measure of the nervous system's state, indicating whether one is in a stressed or relaxed mode.

Partially SupportedBryan Johnson uses a vagus nerve stimulating device on his ear for one hour daily in the morning.

Partially SupportedDevices that stimulate the vagus nerve can improve its tone and health, leading to better sleep and increased happiness.

Partially Supported