As a member of the American College of Sports Medicine, I can affirm the answer is yes. A significant body of research has demonstrated that exercise, when combined with a healthy diet, results in both weight loss and maintenance of a healthy weight.
Further, there is little evidence supporting the claim that exercising produces hunger so uncontrollable that it leads to weight gain. In fact, a recent study from the University of Pittsburgh showed just the opposite: overweight and obese women didn't eat any more food after 40 minutes of exercise than they normally would when inactive.
Exercise does require both effort and self-control, but when these are combined to form a healthy lifestyle, the rewards are substantial. Economically, expenditures are reduced (the recent Weight of the Nation conference reported that obesity accounts for $147 billion in annual health care costs), and people tend to lead more enjoyable, more energetic and happier lives.
Even for the non-overweight, exercise provides benefits that no single pill or prescription ever could. It treats and prevents numerous chronic conditions, including heart disease, high blood pressure, type II diabetes and depression.
Exercise is a health tool we all need, regardless of our weight, and the public must take its importance seriously. Further, advice about weight loss should come from a qualified health or fitness professional, instead of articles that may not showcase the full realm of scientific information surrounding the issue.
There are indeed a lot of benefits of exercise besides weight-loss. One can expect a calmer mind as well. Exercise should be part of every person's lifestyle.
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