More than 430,000 Americans with heart disease require coronary artery bypass surgery each year, and up to 200,000 suffer from critical limb ischemia, or clogged arteries in the leg--one of the major causes of amputation. In the 1940s and 1950s,...

The blood vessels are part of the cardiovascular system and function to transport blood throughout the body. The most important vessels in the system are the capillaries, the microscopic vessels which enable the actual exchange of water and chemicals...

Having a bad heart doesn't mean you can skip exercise, doctors said Wednesday. In fact, it may even help your heart to repair itself. Research presented at the European Society of Cardiology meeting showed that exercise sparks the creation of new heart vessels.In a small...

Having a bad heart doesn't mean you can skip exercise, doctors said Wednesday. In fact, it may even help your heart to repair itself.Research presented at the European Society of Cardiology meeting showed that exercise sparks the creation of new heart vessels.In a small study...

Perhaps nowhere in the body is the adage "you are what you eat" so true as in your eyes, a link international scientists are banking on in a novel bid to save premature babies' vision.Doctors are about to begin testing whether fish oils could prevent...

Blood transfusions have saved millions of lives, yet stored red cells may be less effective than hoped for because they can quickly lose much of their ability to deliver oxygen.As soon as donated blood goes into storage, nitric oxide _ which helps keep blood vessels...