Our body is the most sophisticated, intelligent, and priceless machine on this planet that nature has granted us. Endowed with the natural instincts of survival, sustenance, and self-propagation through self-protection, self-preservation, and reproduction, it achieves all these objectives by talking to us all the time, both in the states of health and disease. In the state of health, it tells us when water and glucose levels in the blood are low, through the sensations of thirst and hung...