Why the babies and the babies develop differently? Were they right when we sent our grandmothers to sleep at night because you grow? Why is bearded bearded lady Circus?Welcome to the amazing world of the messengers of the body, a chemical communication system causes the pancreas to know what you think the intestine and bowel know if the brain is hungry. Our body works as an office with internal e: the boss gives orders to the deputy, who passes to employees (until one of them goes with a story and burning Troy). From head to toe, the endocrine glands-bosses and employees-hormones send messages blood with good and bad news, and so no excuse to become distracted.In this book, Juan Carlos Calvo tells us everything about the hormones and glands: harmony, their codes, their receptors and functions that control, but also cases in surplus or missing and you have to fix the broken email. The body talk, and here understand what they are about these intracellular conversations and what the implications for our lives