Twin research studies help scientists see the difference between genes and environment. With smoking, these studies highlight how addictive nicotine itself really can be.

Quitting smoking is a difficult task. But quitters may find it easier to stay on task by making quitting a part of healthy lifestyle choices that include getting more exercise.

Margaret Thatcher, the first and only female British Prime Minister, has died after suffering a stroke. She was 87.

Teenagers have an incredible capacity to learn, grow and change. And that capacity may be of service when it comes to reducing unhealthy drinking behavior among teens.

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.