Aerobics is the other term for those kind of exercises involving stretching and strengthening of the muscles. Aerobics are very important especially when having your monthly because it alleviates the cramps and makes you feel better.Besides it helps in supplying oxygen to the muscles.Also, aerobics will help in boost your body and facilitate sleep which is very crucial especially when having your periods and it will help in boosting your metabolism which is very important. Finally, aerobics allow free circulation of blood throughout the body which may at times cause anaemia (iron deficiency).Being seated all the time doesn't allow blood to circulate freely and that's why aerobics are important.