New Delhi, Sept. 16 -- For an eight-time Olympic champion, one would think life would be bed full of roses after retirement. But for Usain Bolt, who ruled the world in athletics from 2008 to 2016, life has become tough for the big Jamaican as the fames sprinter now gasps for breath after walking up stairs. Regarded as the greatest sprinter of all time, Bolt won two gold medals at the 2008 Beijing Olympics, three each in London (2012) and Rio de Janeiro (2016).

He also has 11 World Championship gold medals, two silver and a bronze. In fact, Bolt still holds world records for the 100m, 200m and the 4x100m relay. At 39 years, Bolt no longer runs due to a ruptured achilles.

"No, I mostly do gym workouts. I'm not a fan, but I think now that ...