Most groggy teens drag themselves to school by 7:30 most morning. This is a familiar sight to both parents and teachers. Everyone knows that insufficient sleep is common for teens, but few understand that it can also be the source of weight issues.

Smoking can do more than damage your lungs and give you bad breath. It's also linked to kidney disease in adults – and possibly in children as well.

The power of the mind can do a number on the body. When elderly adults keep the body sharp as well, the brain can stay at its best.

Quitting smoking can be tough, but it simply has to be done. Researchers keep looking at ways to help people quit for good, even if there are side effects involved.

Finding lung cancer at its earliest stages, when there is still the chance of a cure, is a problem. Regular CT scans can detect such cancers in older smokers who’ve smoked the equivalent of a pack a day for 30 years.

Daily stressors are often unavoidable, but how they are handled is up to each and every person. How a person manages stress today may play a role in how he or she feels down the road.

Not every mental health disorder fits easily into a category. Some slide on a scale between two well-defined disorders.

Of course good oral hygiene is key in preventing tooth loss, but other lifestyle factors are important too. Healthy teeth may reflect healthy lifestyle choices.

Patients may not always follow the instructions their doctors provide for prescription medications. In fact, more than half of Americans in a recent study did not.

Using alcohol or drugs during times of stress is the last thing a kid should be doing. But kids admitted to hitting the hard stuff when a parent was away on military deployment.