Bust your belly for a healthier heart

If your abdomen looks like an apple (or a beach ball), it's a sign that something hazardous lies beneath.

What's a telltale sign of potential health problems? Look down. Whether you call it a potbelly or spare tire, this noticeable bulge can be more dangerous than you realize.

"It's common for men to put on a few extra pounds every year as they age, but they really should pay attention to increasing waist size," says Dr. Jody Dushay, an endocrinologist with Harvard-affiliated Beth Israel Lahey Health. "Any extra weight around the waist can be especially detrimental to your health."