"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Ever wondered why that one friend gets the stomach flu almost every year, while the rest of your friends ...

Soon after SARS-CoV-2 began its assault on the world, scientists began searching for clues about what, if any, factors made people more or less likely to get infected with the virus, and more or less ...

People with blood type O may be less vulnerable to Covid-19 and have a reduced likelihood of getting severely ill, according to two studies published Wednesday. Experts say more research is needed.

Las Vegas, Nevada – The nation is facing an emergency blood shortage, according to the American Red Cross. Extreme heat and recent natural disasters are affecting the blood supply, the nonprofit says.

Do you know your blood type? Don't worry if you don't. Blood type matters if you know you're going to have surgery or you're ...

WAUSAU, Wis. (WSAW) - The Wausau Community Blood Center says there is a critical need for Type O blood throughout the country. The American Red Cross says Type O-Negative blood is the most common ...

Blood – everyone's got it. In fact, an adult who weighs between 150 and 180 pounds has around 1.2 to 1.5 gallons of blood in their body. This makes up approximately 10% of an adult’s weight. Blood ...