HIV is a retrovirus that impairs the immune system and causes AIDS. Learn about symptoms and treatment.
Long COVID refers to new or recurring symptoms that occur four or more weeks after an infection with SARS-CoV-2, the virus that causes COVID-19.
Coronavirus is a term describes a family of viruses, common in both animals and humans.
COVID-19 is the disease caused by the SARS-CoV-2, the 2019 novel coronavirus.
Fatigue is a common side effect of treatment for cancer. Learn more about symptoms and treatment.
Anemia is a condition in which a person doesn’t have enough red blood cells to carry oxygen throughout the body. As a result, they may experience dizziness, fatigue, and light-headedness.
Women face unique risks, warning signs and symptoms of heart disease. Here's what women—and men who care about them—need to know about this condition.
The number one cause of death in America is heart attack, and the top symptom of a heart attack is chest pain, so people should take such pains seriously.
A rare and serious condition in which a pregnant or postpartum person suddenly has seizures. Eclampsia is a medical emergency and can lead to injury or death for the pregnant person and/or baby.
Asthma is a chronic inflammatory disease of the airways. Learn about symptoms and treatment.