I second yoga. I have dreadful problems with my neck and back, and my arms - I am one of those who sits like a pretzel for 8 hours working on a problem. Yoga

I second yoga. I have dreadful problems with my neck and back, and my arms - I am one of those who sits like a pretzel for 8 hours working on a problem. Yoga works out all of the auxiliary, odd little muscles, and the stretches are great for my posture. And the girls in the class are beyond hot.