While anyone can have a stroke, including young, healthy people, some of us are more at risk. Stroke has many of the same risk factors as heart disease. Although some risk factors, such as age, cannot be controlled, there are many risk factors that can be controlled. more >>

• The warning signs of stroke
• Symptoms and complications of high blood pressure

If we were hit with a flu pandemic, it would spread the same way regular flu circulates. The virus would stow away in tiny droplets that spray from an infected person's cough or sneeze. You could catch the flu simply by standing too close to a sick person who's hacking or sneezing, or by touching a door handle after him. more >>

• Twelve fast facts about avian flu
• Here's a quick guide to help you tell the flu from a bad cold
• Symptoms and complications of seasonal affective disorder
• Types of depression