This is a common myth among dieters who are struggling to lose weight. Individuals do not have a fast or slow metabolism and there is no way doctors can test the speed of your metabolism in a GP surgery!
Studies have shown that resting metabolism – the number of calories used by the body at rest – actually INCREASES as people become heavier. In other words, the larger you are the more calories you use to keep your body going.
Being fit and increasing your lean muscle tissue is one way to increase your metabolism. Essentially, the fitter you are, and the more lean muscle you have, the more calories you burn both at rest and during exercise – thus making weight maintenance and weight control easier.
You don’t need to buy a gym membership or go running for that to count as ‘exercise’. Physical activity and exercise are different. Exercise tends to be intentionally ‘doing something’ whereas physical activity refers to the activity we do as part of daily life. Aim to increase your physical activity, and if you want to do exercise – find something you love doing.