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.
Blood needs to be donated, tested, ready and available for transfusion before it's needed. THE FACTS ABOUT BLOOD. 1  Blood makes up about 7 percent of a person's weight. 2  An adult body of average weight has between 12 - 14 pints of blood. Blood makes up about 7 percent of a person's weight. 2  An adult body of average weight has between 12 - 14 pints of blood. 3  A 110-pound teenager has around 7 pints of blood. 4  A 40-pound child has around 2 to 3 pints of blood.