Never skip the stretching exercises: “During an exercise session, there are chances of lactic acid accumulation or so. To avoid this as well as to avoid the delayed muscle sourness, we recommend warm-up sessions. They help in improving the blood circulation before activity. And after the activity, they help in relaxing the muscles,” said Pooja Udeshi, Sports Nutritionist, Kokilaben Dhirubhai Ambani Hospital and Medical Research Institute. These exercises are extremely important.