After a plasma transfusion from his son, Bryan Johnson's 71-year-old father's speed of aging was reduced by the equivalent of 25 years.

Instead of viewing health as a cost to ambition, it should be the top priority because it makes you better at achieving status, wealth, and power.

An 'age reader' device can measure advanced glycated end products (AGEs), which are like junk in the skin, to determine your skin's biological age.

For penis shockwave therapy, clinicians suggest being erect is better than flaccid because it provides greater tissue exposure during the treatment.

A recent study suggests that people who don't get half of their restorative sleep by 4 AM have a higher likelihood of developing diabetes.

Eating your last meal by 11 AM allows the six-hour primary digestion process to finish so your body can fully allocate its resources to sleep.

The restorative, brain-cleansing deep sleep occurs in the early part of the night, and if you miss this window, you cannot get it back later.

To wind down, mentally acknowledge your ambitious or worried thoughts, thank that version of yourself, and consciously tell yourself you are now in 'sleep mode'.