Chocolate, along with a good and lovely tasting, has many properties and helps to improve the overall health of the body. The smell of chocolate increases the brain wave that makes it relax. According to studies, bitter chocolate has helped restore blood vessel flexibility and also prevents white blood cells from sticking to the walls of blood vessels. Studies have shown that chocolate, the form of codeine, blocks the cough due to toobromine in it. Potentially reduces the risk of cardiovascular disease.