Health Information Library

In this heart condition present at birth, some blood vessels of the lungs connect to the wrong places in the heart. Learn when treatment is needed.

This condition, present at birth, affects the valve between the lower left heart chamber and the body's main artery. Know the symptoms and treatment.

These heart conditions present at birth cause the mitral valve to leak or become narrowed. Know the symptoms and treatment.

Learn how genetic testing can help customize your cancer treatment plan. Precision medicine is improving breast cancer diagnosis, treatment and prevention.

Learn about this tumor that forms from ependymal cells in the brain and spinal cord. Treatments include surgery, radiation therapy and chemotherapy.

Learn about the types of operations used to treat breast cancer, including lumpectomy, mastectomy, lymph node surgery and breast reconstruction.

Learn about the services available to help you feel better during and after breast cancer treatment.

What works for one person's pain may not help yours — and every pill has risks. Learn how to sort through your options for maximum relief and minimum risk.

Learn about this burst of electrical activity in the brain and what causes it. Find out what to do if you see someone having a seizure.

Learn about these malignant brain tumors that happen most often in babies and young children. Treatments include surgery, radiation therapy and chemotherapy.

Opioids act on the brain in powerful and potentially dangerous ways. Find out why no one is safe from opioid use disorder and learn what raises the risk.

Find out how flaxseed may affect cholesterol, blood sugar and blood pressure.

Find out why cannabis, also called weed or marijuana, is used and the possible risks.

Understand when a folate deficiency might occur and the importance of folic acid during pregnancy.

Understand how L-arginine affects blood vessels and when to avoid using this supplement.

Understand how SAMe works and its potential effects on depression and osteoarthritis.

Get the facts about this supplement and how well it works in treating conditions such as atopic dermatitis.

Understand how fish oil might improve heart health and the possible risks of taking too much fish oil.

Explore the uses of vitamin A and risks of excess use of this supplement.