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The hypothalamus is a region of the brain that regulates sleep cycles, body temperature, pituitary gland activity, and other

Hypothyroidism happens when your thyroid gland doesn't make enough thyroid hormone. Thyroid hormone controls the way your body

Hysteroscopy is a procedure that allows a doctor to look at the inside of the uterus. During hysteroscopy, a lighted viewing

Hysterectomy is the surgical removal of the uterus. It is done to treat certain gynecological conditions, such as endometriosis

A person with diabetes uses a home blood sugar (glucose) test to measure the level of glucose in their blood. The test can be done

Hyperbaric oxygen therapy is a treatment to increase a person's blood oxygen level, which can prevent tissue death, promote

Heart valve disease occurs when a heart valve is damaged or narrowed and does not control or allow the normal flow of blood

Hypoplastic left heart syndrome is a heart problem that is present at birth (congenital) in which the left side of the heart and

A latent (inactive) tuberculosis (TB) infection is the presence of TB bacteria in a person's lungs even though they do not have

Inflammatory bowel disease (IBD) is a condition that causes ongoing inflammation of the intestines. The condition can affect only