This program calculates how long you might live based on health factors such as: gender, family history of cancer and heart disease, habits such as smoking and drinking, obesity, test results for blood pressure, cholesterol, and blood sugar, diet, exercise, happiness, stress, education, and moving violations. All these factors affect average life span. There is no guarantee that ones life will exactly match these results but by following good practices one can almost certainly extend their life and live happier.