Biohacker Bryan Johnson has claimed that he has managed to de-age his penis by 15 years thanks to his controversial rejuvenation methods. 

In an interview with this website, the longevity entrepreneur — who is 47 but has the body of a man in his 30s — revealed that measuring night-time erections is one of the most important markers of health. 

For men who have few erections a night may be suffering from a cardiovascular health problem, or another condition such as diabetes, he said. 

Mr Johnson, 시알리스 구매 사이트 who is 47 but has the penile health of a 22 year old, admitted he uses a specialist tracker that measures penis size throughout the night, to monitor 시알리스 사용 방법 his erections. 

The device, which then gives him an 'AndroAge score' — the health and age of  erections — marks one of the seven steps he takes to keep his penis health in check.