You don't need us to tell you that by middle age your metabolism is slower and the pounds pile on faster.
Being overweight ups your risk of hypertension and cardiovascular disease. Being obese can shave six to seven years off your life.
The test to get:
Find out your body mass index, or BMI, a measure of body fat based on your height and weight. With a BMI of 25 to 30, you're considered overweight; 30 or higher, obese.