Jimmy Kimmel

I do have a treadmill desk in my office, and for a while, I would walk on it while checking email and going through jokes. I haven't walked on it in probably four months. Now it's more of an upright dining table for me. At some point, moss will grow over it, birds will build nests, and nature will reclaim the treadmill as its own.

I know people who have literally quit their jobs to spend more time with their children, and I go, 'Wow,' my dad used to go to work at 7 o'clock in the morning and he'd come back at 7:30 and we'd kind of see him walk in and then he'd go upstairs and suddenly he'd be in a T-shirt and grumpy. There wasn't much in the way of conversation that went on.

Things look especially bleak for common killers such as diabetes and heart disease. Those ailments clearly have a genetic component. But when scientists survey genes looking for which mutations patients have in common, they come up empty.