The Circulatory System

President Bush's heart stent surgery is a reminder for all Americans to monitor their cardiovascular health.

Stem cells could improve blood flow to damaged areas of the heart.

Serene Branson's doctors announced her diagnosis today.

Women are more likely than men to have a type of heart disease that responds better to cardiac resynchronization therapy with defibrillator.

Do chest compressions first, then check the airway and do mouth-to-mouth breathing, according to new guidelines.

A new drug may improve blood flood in patients with sickle cell disease.

At the age of 79, Elizabeth Taylor died from heart failure this morning. What exactly does that mean?

Three biological makers may help scientists predict person's risk of developing chronic kidney disease.

Avastin is as effective as Lucentis in treating age-related macular degeneration.

Screening early for the conditions could help doctors intervene.

Mammograms may have a use beyond looking for breast cancer tumors.

A new test may one day identify patients who are on the brink of having a heart attack.

Stress hormone found in hair can give insight to heart attack risk

Time spent in traffic accounted for the most heart attacks, the study said.

Microbleeds can occur either from blood vessel damage, or accumulation of amyloid plaques in blood vessels.

Amateur runners -- even those without pre-existing heart problems -- can damage their hearts by running marathons.

A ruptured aneurysm could lead to stroke.