The doctor, who is an expert on longevity, tells how he rejuvenated his body by 20 years https://filantropikum.com/az-orvos-aki-a-hosszu-elet-szakertoje-elmondta-hogy-fiatalitotta-meg-20-evvel-a-testet/ A longevity expert Dr Mark Hyman is 63 years old, but everyone agrees that he doesn't show his age at all. Moreover, Mark says his scientifically determined "biological age" is 43 years, thanks to a routine he has perfected over the years.