Am i genetically predisposed to be fit?

Question

when i exercise at the gym i realise that i work much harder and longer than everybody else. today 1 of the trainers told me that i work harder in 1 session than everybody else in 1 week.

is this partly due to genes?

lance armstrong was born with above average sized heart and lungs.

Answer 1

It's possible. People's genes can determine whether they gain weight easily or stay thin, so there is probably one that determines your stamina for exercise as well.

Answer 2

yes this is due to genes . all people r different