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

Sometimes, certain medical tools are found to do more than they were intended. For example, one test for heart disease and stroke may also come in handy when assessing dementia risk.

The effects of a mother's body on her developing child are still mysterious in many ways. For example, the possible effects of emotional stress on a baby aren't totally understood.

Individuals with heart disease are already at a higher risk of death from their heart condition. But adding depression or anxiety – or both – to the mix can raise the stakes.

Positive feelings can make a world of positive difference in a person’s health. For patients with failing hearts, however, negative feelings and depression can have the opposite effect.

You may feel a little timid to ask people not to smoke around you. But asking for your right to breathe fresh air could have an important impact on your health.

When this world starts to get you down, it could be increasing your risk of heart attack. New studies have found that hurricanes, war and economic crises may be bad for the heart.

Among smokers, a common reason to not quit is the fear of gaining weight. While weight gain is a serious concern, continuing to smoke is a greater concern.

It's frustrating enough when you toss and turn, unable to fall asleep. It's worse when you can't stay asleep. And now it seems these sleeping problems may affect more than your rest.

It's said that helping others can make you feel better. Now there is evidence that helping others might actually improve your physical health as well.