Health Topics A-Z

Infertility is when a person, or a couple together, is unable to become pregnant or can become pregnant but cannot carry a pregnancy to term.

People with insomnia have trouble falling asleep, staying asleep, or getting good-quality sleep.

Intellectual and developmental disabilities are differences usually present at birth that affect a person’s physical, intellectual, and emotional development. They may affect multiple systems in the body, and their symptoms extend throughout life.

Irritable bowel syndrome (IBS) is a common digestive condition that causes abdominal pain and changes in bowel movements over a long period of time. It affects both adults and children and is also called a disorder of gut-brain interaction.