I always enjoyed writing. I did playlets in high school, I did radio shows in college. That's one of the reasons I went down to Second City, because you could do acting and writing.
If you write, one of the questions you're always trying to answer is, Where do you get your ideas? And, if you write, you know how pointless a question this is and how difficult it is to answer.
So many older people, they just sit around all day long and they don't get any exercise. Their muscles atrophy, and they lose their strength, their energy and vitality by inactivity.