Waiting for a donor’s heart can take a long time, and sometimes after transplantation, the recipient’s body rejects the new heart. A new study may have found a better way to choose a heart donor.

As more people live beyond 80, incidences of heart valve blockages have grown. Damaged aortic valves are often treated surgically, but a catheter-based method has emerged as an alternative.

One fifth of the US blood supply goes to heart operations. Because blood transfusions are costly and can lead to health complications, a blood conservation strategy may help.

Cases of shingles have been rising in recent years, even among younger individuals. And the disease may be increasing other health risks as well.

African Americans have the highest rate of high blood pressure of all racial groups, but it often goes undetected, and among this population, women are more likely to have the condition.

Many drugs that prevent blood clots are used to reduce stroke risk, but which therapies are the most effective?

While high “good” cholesterol and low “bad” cholesterol levels can stave off heart disease, cholesterol may also affect plaque buildup in the brain, which is linked to Alzheimer’s disease.