When it comes to shedding kilos, it is 80 per cent nutrition and 20 per cent fitness. Yes, indeed you may shed kilos only by dieting, but exercising has its specific health benefits. First of all, it will help you burn more calories and will speed up the weight loss process. Secondly, it will help to tone your muscles and build muscle mass. Apart from these, daily exercising helps to improve your heart health, lift your mood and strengthen your bones. Even in general, if you do not intend to lose weight, you must exercise every day for 30 to 40 minutes.