The average American consumes nearly 240 pounds of sugar per year. And most of the excess sugar will get stored as fat in your body, which elevates cancer risk and can suppress your immune function. When study subjects were given sugar, their white blood cell count decreased significantly for several hours afterward. This held true for a variety of types of sugar, including fructose, glucose, honey and orange juice. In another study, rats fed a high-sugar diet had a substantially elevated rate of breast cancer compared to rats on a normal diet. To live long, draw sweetness from other aspects of your life.