Calling it an “emergency request,” the American Red Cross is in urgent need of platelet and blood donors of all blood types. According to the Red Cross, someone in the United States needs blood every two seconds.
Some health practitioners say it’s important to know your blood type because foods can react differently depending on what’s running through your veins.
Here’s another reason to know your blood type — it might be a clue to your risk of heart disease. People who have blood types A, B, or AB have a slightly higher risk of heart disease compared to those with type O.