The ABC's of Hormones: What You Need to Know about Melatonin, DHEA, Pregnenolone, Sex Hormones, HGH, Insulin, Thyroid, and More

Hormones are the magic bullets of anti-ageing products. But are they safe? And how necessary and beneficial are they? This investigation into a controversial topic explains the basics of hormones, their risks and benefits, and their appropriate and inappropriate uses.