Vitamin D supplements have been recommended to help prevent many serious conditions. But they actually might not be helping.

The rate of human development is the fastest during the first trimester of pregnancy. Fetal growth restrictions during this time could affect the baby's future health.

Deciding how to treat a condition like high cholesterol can be tough, especially when some treatment options have been tied to an increased risk of other health problems.

High blood pressure can be a “masked” villain. Readings at a clinic may show normal blood pressure levels, while home readings may give a more accurate view of cardiovascular health.

While sitting may not seem harmful, a sedentary lifestyle may raise the risk of heart disease and premature death. Inactivity may also increase the chances of heart failure in men.

Could consuming the healthy fats, fish and perhaps even red wine of the Mediterranean diet help prevent a certain artery disease? Maybe so, according to a new study.

Sometimes it can be difficult to learn enough about diseases that are fairly rare. Kawasaki is one such disease, but doctors are learning more.

In adults, sleep apnea is tied to higher blood pressure. Does sleep apnea produce the same result in children?

Physical activity is part of a healthy lifestyle, but one new study shows it may not be enough for postmenopausal women who have otherwise sedentary lifestyles.

We count on prescription medications for our health, but just like fresh foods, they can be subject to recall. A recent medicine recall might lead to shortages for some patients.