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Folate is an essential nutrient. A lack of dietary folate can cause anemia, which is especially dangerous for women during pregnancy. Learn about the causes, symptoms, treatment, and prevention of folate deficiency here.

A first-of-its-kind study compares the cure rates and side effects of proton therapy and X-ray radiation for people with various forms of cancer.

A blood clot in the arm can be a dangerous health problem. If the clot dislodges and travels to the lungs, it can block the flow of blood there, causing the tissue to die. As a result, a blood clot in the arm requires prompt treatment. Learn about the signs and symptoms of a blood clot here, as well as how to treat it.

A hypoechoic thyroid nodule is a type of thyroid nodule that appears dark on an ultrasound scan and typically indicates a solid mass rather than a fluid-filled cyst. Thyroid nodules are common and most are harmless. However, they can sometimes develop into thyroid cancer. Learn more here.

Coffee products that contain roasted beans contain small amounts of the compound acrylamide. There are concerns that acrylamide may be carcinogenic, but research suggests that coffee is generally safe to drink and may actually protect against a number of cancers and other conditions. Learn more here.

B vitamins are a group of eight related nutrients. This article takes a close look at all of the B vitamins, including their functions, sources, and deficiency symptoms. We also discuss the best ways to take B vitamin supplements.