People tend to relax as they get older, and most people sit more. Each extra hour of sitting increases the odds that they won't be able to get out of bed or do other daily activities.
The more you sit, the less physically active you are, which can lead to all sorts of health problems, including an early death.
But too much sitting increasingly looks like a health risk all its own. Researchers at Northwestern University say that for people 60 and older, each additional hour a day spent sitting increases the risk of becoming physically disabled by about 50 percent — no matter how much exercise they get.