Not to bum you out even more, but it all has a major impact on how quickly you age. A single major life event that occurs in one year, for example, could make you eight years "older," and that number doubles when you're dealing with two events in a year, explains Roizen. The good news: you can stop stress from turning you into a senior citizen in a matter of months -- just try these expert-approved stress-management tips.
You keep a terrible sleep schedule
By now you probably know that an "I’ll sleep when I die" mentality screws with a bunch of different aspects of your life -- and that includes how fast you age. Further proving that this busy, sleep-sapping world just isn't fair, science suggests that the less you snooze, the faster your brain ages.
But before you demand regular nap breaks at work (though plenty of companies fully support that), know this: sleeping too much might accelerate aging, too. Counterintuitive? Seems like it, but it’s true, and could equal about four to seven years of actual aging. Dr. Roizen also points out that, in some cases, sleeping more than usual might be a sign of depression, a disorder that's been linked to fast-tracked cellular aging. “Or maybe, when you sleep that much, you don't have a normal activity period in the rest of your life," he says. Either way, you might want to take a Goldilocks approach to sleeping.