A recent study found that four bad behaviors—smoking, drinking too much alcohol, not exercising, and not eating enough fruits and veggies—can hustle you into an early grave, and, in effect, age you by as many as 12 years.
Fortunately, you can do something to correct these and other unhealthy behaviors. Adopt the following nine habits to keep your body looking and feeling young.
1. Don’t overeat
If you want to live to 100, leaving a little bit of food on your plate may be a good idea. Author Dan Buettner, who studies longevity around the world, found that the oldest Japanese people stop eating when they are feeling only about 80% full.
St. Louis University researchers have confirmed that eating less helps you age slower; in a 2008 study they found that limiting calories lowered production of T3, a thyroid hormone that slows metabolism—and speeds up the aging process.