BMI, Body Mass Index, doesn’t tell you everything. It does not, for instance, reflect cardiovascular fitness or the body’s levels of muscle and fat. According to new research, postmenopausal women who have a normal BMI but low levels of body fat may have a slightly lower risk of invasive breast cancer than those with a normal BMI and high levels of fat. Here’s why: Body fat produces estrogen, and estrogen in the body can stimulate the growth of certain types of breast cancer, so staying lean (in addition to having a normal BMI) may help you avoid that risk. What to do? Don’t obsess about your body composition, but do commit to an exercise routine that builds endurance and strength — even if your BMI is normal. Pick an activity or two that gets your heart rate up, and do it for about a half hour a day, five days a week. Keep it up, and you’ll lower your risk of chronic illness, including breast cancer.
Source: High Body Fat Levels Are Associated With Increased Breast Cancer Risk in Postmenopausal Women With Normal BMI
“I am not a fitness freak. I do my regular exercises." Uday Kiran