Gazing down on the spectacular view from a mountaintop can take your breath away. That breathlessness is oftentimes more than just an awestruck reaction to the sights. It can be a symptom of altitude sickness, an illness that can strike hikers, mountain climbers, skiers and anyone who hits the 8,000-foot mark on a mountain.

Drinking can be an expensive habit. While you may not notice a dollar here or two dollars there, consider how much you spend per week and per year on alcohol.

The questions in this assessment ask about risk factors—conditions that may put you at risk for developing type 2 diabetes. The American Diabetes Association (ADA) states that the more risk factors you have, the more likely you are to develop diabetes.

Colonoscopy is a procedure that lets your doctor see directly inside your entire colon using a flexible tube. It can detect intestinal problems such as bleeding or early signs of colorectal cancer. In this video, you'll learn what you might experience during a colonoscopy and what to expect given your particular results.

Many Americans realize that obesity is more than a cosmetic concern. A recent poll found that 78 percent knew that obesity can raise the risk for heart disease. Seventy percent recognized a link with diabetes. But what about high blood pressure? Canc