The Dance of the Hormones
Of all the systems of the body, the endocrine system is the most complex and perhaps least understood by conventional science. Intricately linked to the brain and nervous system, this fascinating network is comprised of the endocrine glands, the hormones they secrete, and related biochemical messengers that regulate every function in the body. Not long ago, scientists believed that there were approximately 40 hormones circulating the body, while today they have accounted for over 100. One can only wonder how many more of these mystifying substances will be discovered in the future as we begin to grasp the full scope of this intriguing system. The word hormone was derived from the Greek word for "excite," thus linking our hormones to our emotions. This is further explained when we understand that the pituitary gland, known as our master gland, is located in the hypothalamus region of the midbrain. The hypothalamus is part of the limbic system, known as the ancient "reptilian" brain, that governs our emotions and instinctual processes such as hunger, thirst and sexuality. It is here that our feelings are processed and hormonal signals sent from the pituitary gland to the various other glands for appropriate physical and behavioral response. Each hormone is like a highly specialized key, designed to transmit its message only to certain target receptor cells that are capable of recognizing that particular hormone. Hormones act by turning on or off the genes for a special function, or by regulating the rate at which these functions are performed. The endocrine system is an intricate feedback system with impeccable timing in which hormones release or suppress other hormones to maintain the delicate balance of life. Height, weight, growth, maturation, adaptation to stress, [...]