Your BMI or body mass index is a way to measure your body fat based on your height and weight. Health professionals advise that a BMI between 18.5 and 24.9 is ideal. A BMI of 25 to 29.9 is considered overweight, while anything over 30 is obese. You can reduce your BMI (and risk of chronic illness, such as diabetes) by exercising regularly and embracing an active lifestyle. Start simply – just move more all day. No need to join the gym right away or invest in fancy fitness clothes. Take a walk after work. Dance after dinner or wear a pedometer and challenge yourself to get in as many steps as you can everyday.