Have you recently carried heavy shopping bags up a few flights of stairs?
“When I was about to turn 40, I started working out regularly after years of inactivity..."
Between running a billion-dollar empire, attempting to head to space and blogging multiple times per day, Virgin Group founder, Sir Richard Branson, gets a lot done. 
Howie Mandel has a a decade in television under his belt as the host of popular shows like AGT and Deal or No Deal. For the star, keeping “busy doing things in happy environments” is what keeps him feeling healthy at 63.