People tend to strain their neck doing sit-ups, so individuals who have any neck pain should avoid this exercise. Sit-ups can help to attain a strong core, improve posture and aid in weigh loss.

Do this total for 10 consecutive days — aim for 20 to 25 sit-ups per 30-second set. Besides doing sit-ups, you should strengthen your lower back by adding plank poses to your daily routine and ...