The son of a biohacker has spent millions trying to keep his body young has responded after an 'erection test' between him and his father went viral. Bryan Johnson is a 47-year-old biohacker and entrepreneur who, for the pasr five years, has spent more than $2 million (£1.6 million) on trying to reverse his physical aging process.

Biohacker Bryan Johson claims to have stalled the progress of aging in his new Netflix documentary, Don’t Die.

An American tech-mogul turned anti-ageing fanatic who has spent millions trying “not to die” has been criticised after sharing data about his teenage son’s night-time erections.

Bryan has not only monitored, but also shared the results of his biohacking efforts with the world. A comprehensive dataset, ranging from his heart rate

Age-revering millionaire Bryan Johnson follows an intensely detailed and scientific regimen aimed at reversing the ageing process.