Famed Biohacker Bryan Johnson has done some pretty wild things in his bid to stretch his healthspan. From controversial blood transfusions and daily infrared sauna sessions to pricey wearable devices , strict fasting before bed, and many protocols in between, the longevity enthusiast is not known for taking the easy route out. Johnson has reportedly spent millions on his intense anti-aging routine. However, in his list of “Health Essentials (To Live To 120+)” , the 48-year-old revealed one item