Dr Richard Weiler, an exercise and sports medic, has said that a lack of fitness causes more illness than body fat .
Lack of exercise can lead to conditions like type 2 diabetes, heart disease, depression and high blood pressure .
He urges for public health policies to stress increased physical activity and that forking out lots of money on the treatment of obesity is the wrong way forward.
Both drugs and surgery for weight loss carry risks and their benefits in the long term are dubious.
Cardiorespiratory fitness, which is cultivated by regular exercise, predicts mortality better than obesity .
90 percent of us do not undertake the recommended 30 minutes of moderate exercise five days per week.
Health problems can greatly be reduced by more physical activity which leads to fitness.
It is of course sensible to focus on your diet and increasing your level of physical fitness in a bid to be healthy.