Here are some of the things that happen when someone drinks coffee. The odour of the coffee itself produces stimulating effects in various parts of the body blood vessels in the brain are dilated so that circulation is improved and his removes some of the fatigue toxins from the brain. Coffee increases the pulse rate, which means it stimulates the heart. Coffee increases the tone of the muscles, so they can work harder. The intestine becomes more active because of coffee, which has a slight laxative effect. Coffee makes the gastric glands secrete more actively. For healthy people this is desirable, especially after a heavy meal. But for others it may produce heartburn. Coffee also helps the body remove salt from the blood. Coffee actually produces different effects on the body at different times of the day. The morning coffee acts on the kidneys and helps the body get rid of waste products accumulated during the night. Coffee after lunch, however, ac on the gastric glands and helps digestion. Coffee taken in the evening seems to stimulate the mind and the imagination. Some people avoid drinking night because that is the time when they want to relax. other people seem quit ible to sleep despite the caffeine in their coffee.