Nicotine, one of the main chemicals in tobacco, is the primary reason that smoking is so addictive. Even though most smokers know that smoking is bad for them, they find it difficult to quit because of the nicotine's effect.

When you are trying to have a baby, fertile times are an important factor. Use this information about your cycles to help to predict your more fertile times and when you will ovulate.

This questionnaire can help you find out how likely you are to have depression.

Giving up smoking is a tough decision. And slipups can happen. But a slipup doesn’t have to be an excuse to start smoking again. Watch and learn how to get back on track with your plan to quit smoking.

We're living longer these days. Unfortunately, a longer life doesn't necessarily mean a healthier one. Many Americans are struggling with chronic health conditions—and even more of us will in the future. Case in point: heart failure.