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Sickle cell disease (SCD) is an inherited blood disorder that causes the body to make abnormal hemoglobin. This is the protein in red blood cells that carries oxygen to all parts of your body. The damaged red blood cells block blood flow in small blood vessels. This causes pain and can damage major organs.

Depression is a whole-body illness. It involves the body, mood, and thoughts. Depression affects the way you eat and sleep. It also can affect the way you feel about yourself and things. It is not the same as being unhappy or in a "blue" mood. It is not a sign of personal weakness or a condition that can be willed or wished away. When you have depression, you can't "pull yourself together" and get better. Treatment is often needed and many times crucial to recovery.

Suicide is when a teen causes his or her own death on purpose. Before trying to take his or her own life, a teen may have thoughts of wanting to die. Read on to learn how to recognize the warning signs, and how to get your teen help.

A mother with HIV can pass the virus to her baby during pregnancy, labor and delivery, and breastfeeding.

Anyone can get esophageal cancer. But there are some factors that can increase your risk for it. Learn which ones.

Esophageal cancer often doesn't cause symptoms in its early stages. When this cancer does cause symptoms, they're often like those you might have with other health issues, such as indigestion.

Targeted therapy medicines attack specific proteins or cell functions that help cancer cells grow.

Read on to learn about oligohydramnios, including causes, diagnosis, and how to manage it.

A traumatic brain injury (TBI) is a sudden jolt to your head that changes the way your brain works.