What do depression, weight gain, insomnia, and anxiety all have in common? Research has shown that they are all linked to vital brain chemicals called neurotransmitters that affect everything from your mood to your appetite. One of the most important neurotransmitters is serotonin, which is created from a nutrient called 5-hydroxytryptophan - 5-HTP for short. In "5-HTP: Nature's Serotonin Solution," Dr. Ray Sahelian discusses the latest in 5-HTP research in the areas of weight loss, depression, anxiety disorders, fibromyalgia, migraine headache, premenstrual syndrome, insomnia, and a number of other psychological and neurological disorders. He shows you how this nutrient works and how it can be combined with herbs, nutrients, vitamins, hormones - including melatonin, DHEA, and pregnenolone - and medicines to create comprehensive treatment programs. Included in the book are opinions both of doctors who use 5-HTP and related nutrients in their practices, and of people who have taken 5-HTP. In addition, Dr. Sahelian provides important information on dosage, side effects, medical testing, and interactions with medicines and other nutrients.