In a simpler time, we were told to avoid foods that were high in fat. But then we learned that there are many different types of fats, including some, like olive oil, that are good for you.n a simpler time, we were told to avoid foods that were high in fat. But then we learned that there are many different types of fats, including some, like olive oil, that are good for you.
1 One out of every 10 people entering a hospital needs blood. 2  Just one pint of donated blood can help save as many as three people's lives. 3  The average adult has 10 pints of blood in his or her body.
Every three seconds someone needs blood. One out of every 10 people entering a hospital needs blood. Just one pint of donated blood can help save as many as three people's lives. The average adult has 10 pints of blood in his or her body. One unit of blood is roughly the equivalent of one pint. Blood makes up about 7% of your body's weight.