Career
Between the ages of 36 and 79 Vartzakis participated in a university study on the effects of ageing on performance, which showed that his average speed decreased by 30% over a period of 43 years.
Between the ages of 36 and 79 Vartzakis participated in a university study on the effects of ageing on performance, which showed that his average speed decreased by 30% over a period of 43 years.
