I wish my father had started exercising much earlier in his life. I also wish he had started exercising late. He died at the age of 69. Just 9 years older than Tony Elumelu today.
I was listening to Sanjay Gupta on a walk yesterday and he revealed how exercise builds brain cells

You can still generate new brain cells at any age, the easiest way to do that is to walk daily. It is not just about muscles and the belly but also cognitive fitness.
Most American Presidents (except for Trump) had a well-known fitness regime. Obama and Clinton ran daily.

Obama is also another very fit person at age 60. He has achieved almost everything possible in life but he still pushes himself to remain fit so he can keep thinking and contributing.
Fitness isn't about money as people alluded to with Tony Elumelu. Money is about fitness.

You achieve more when you are fit. You don't achieve more to get fit.
That is the greatest secret of strong minds.