Dr. Cooper in studio; Alternative Medicine, DHEA can it cure depression, Echinacea, Vitamin D

Today the topic is alternative medicine. .What does that mean? And more importantly, how do you separate fact from fiction when it comes to all of the incredible benefits touted on radio, TV, and the Internet? Can DHEA – an endogenous hormone (made in the human body) that's secreted by the adrenal gland – cure depression and heart disease, and improve your libido? What about Echinacea? Does it help treat and prevent colds? And if your body actually manufactures vitamin D, is there any reason for you to take a supplement?