Since everyone has already covered the ideal changes allow me to introduce my change. I'd allow more funding to the doctor who could create the ability to increase my metabolism 100 fold, thus, forcing me to eat that extra large, extra cheese, stuffed crust, meat lovers pizza just to survive!! Of course, it would be … Read more

Walking. I have a lot of friends who were runners. A good number of them have had knee replacement surgery in their early 40's. Most have found other sports that are less damaging like biking or swimming.

Walking for me....I'd knock myself out if I tried to run! ;)