Health Topics A-Z

Infections happen when germs invade and grow inside the body. When the body’s response to an infection gets out of control, it can lead to a life-threatening condition called sepsis.

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.

Influenza, also known as the flu, is a highly contagious respiratory illness caused by influenza viruses that infect the nose, throat, and lungs. Each year, influenza causes millions of illnesses worldwide.

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

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.