How healthy are you and what do you do to keep yourself healthy?

I am almost a vegetarian; I eat meat only if I know the name of the animal.

To keep myself healthy, I run and swim a lot.

In my opinion running is the best thing you can do: it's free, you don't have to be with annoying people in the same room, it will clear your mind, and it will generally improve your health because we are designed by nature to be runners. That's why we have feet!