Our company started up a wellness program about six months ago. I expect they realized that when the most exercise your typical software developer gets is running to the fridge when the Mountain Dew runs out, having some kind of incentive for your employees to get in better shape will reduce your healthcare expenses in the long run. It works on a “points” system. You get points for filling out a health questionnaire, going for preventative care, and competing in “challenges,” the point of which appears to be to get you to develop good habits.