Each year in the United States, nearly 800,000 people suffer a stroke, or a brain attack.
All it takes is one bite: Dengue is a debilitating virus that’s transmitted to humans by the bite of an Aedes aegypti mosquito that has previously bitten a person infected with the dengue virus.
With the advent of science, blood became a key diagnostic element. Withdrawn from the body, it was isolated and studied.
Cholesterol, a soft, waxy substance present in cells throughout the body, serves many important functions.
Scientists have learned more about cancer in the last two decades than had been learned in all the centuries preceding.
The immune system’s collection of organs, special cells, and molecules is on constant alert to protect us from dangerous infection and disease and keep us healthy.
The adult heart usually beats between 60 and 100 times a minute at rest, but if a person has bradycardia, a slower than normal heart rate, it indicates a problem with the heart’s electrical system.
The lungs are remarkable organs made of spongy tissue that supply oxygen, the life-sustaining gas needed by the body.
The American Cancer Society estimates that this year about 233,000 new cases of invasive breast cancer will occur among women in the United States.
Heart failure is caused by a weakening of the heart’s ability to pump blood.