This could be why you're fat - 3

FIT BUT FAT

COULD BE: The wrong kind of exercise.

If you don’t change your gym routine, fitness levels can quickly plateau, and your body will adapt, meaning fat and calorie-burning efficiency dramatically drops.

WEIGHT-LOSS SOLUTION: The key is to vary your routine and also introduce more intense sessions within your exercise programme.

A rigorous exercise plan, which incorporates short bursts of high-intensity exercise (such as sprints), will switch on the body’s metabolism, for up to 24 hours later.

Dr Ulf Ekelund, who is a specialist on exercise and obesity with the Medical Research Council, says that by simply switching from walking to jogging, you can increase your calorie burn by 100  per cent and halve the amount of time you need to spend doing it.