You’ve probably heard that once you hit 40, it’s all downhill when it comes to your weight. That inexplicable force we call our metabolism does begin to grind a bit slower every year from age 30 onward.
Here’s the good news: The rate at which your metabolism slows down is actually rather minimal. In reality, most weight gain that happens in midlife isn’t the result of a slower metabolism at all.
Instead, it comes down to a simple but changeable truth: As we get older, we get less and less active. While this might sound depressing, it’s actually great news. There’s plenty we can do to counteract the slow, seemingly inevitable onset of poundage. But first, here are some basics about what metabolism is — and what it isn’t.
Excerpted from Business Insider