Muscles in the Human Body. Muscles are how we move and live. All movement in the body is controlled by muscles. Some muscles work without us thinking, like our heart beating, while other muscles are controlled by our thoughts and allow us to do stuff and move around.
Cramping and Breast Tenderness. Cramping is one of the most common symptoms a woman experiences before, during or after her menstrual cycle. Caffeine contributes to cramps because of its diuretic nature--it increases urine production and promotes dehydration. In addition, coffee contains oils that may inflame your intestines and cause cramping.
Menstrual cramps and relief. Menstrual cramps are a common type of pain during periods and may be called dysmenorrhoea by doctors. Cramps are usually first experienced a year or two after starting having periods - starting menstruation. The pain can be mild or severe - and is usually felt in the lower abdomen or back. The cramping often begins just before or at the start of the period.