'Signals is a special book, a witty, utterly fascinating guide to who you are and how you work. It's compassionate, humane and grounded in the author's deep clinical experience' Chris van Tulleken, author of Ultra-Processed People

'A doctor who has a gift for finding just the right words...compelling, affecting' The Times

'If you want to learn more about hormones, this is THE book to get' Davina McCall, author of Menopausing

From cortisol to GLP-1, everyone is talking about hormones: Signals cuts through the noise and misinformation to help you finally understand yours. Dr Hameed reveals the workings of the miraculous hormone system and its far-reaching influence on men's and women's physical, emotional and mental health at every stage of life.

Dr Saira Hameed is one of the UK's leading endocrinologists with over twenty years experience treating patients. Here, she invites us into her clinic to see what happens when the body's signaling system - our network of endocrine glands and hormone signals - breaks down.

Sit beside Dr Hameed as she treats patients with crippling exhaustion, agonising infertility, absent libido and frenzied disorientation. Witness a young boy who can't stay awake and a teenage girl whose racing heart will not be able to keep going much longer...

Combining compassionately told patient stories with pioneering medical breakthroughs - and exposing common misconceptions along the way - Signals is a vital book for anyone who wants to understand their health and happiness.

About the Author

Dr Saira Hameed is a Consultant Endocrinologist at Imperial College Healthcare NHS Trust and a Senior Tutor and Honorary Clinical Senior Lecturer at Imperial College London.

She studied medicine at Oxford University and University College London and has been a Medical Research Council Clinical Training Fellow and National Institute for Health and Care Research Clinical Lecturer.

Dr Hameed holds a PhD in neuroendocrinology from Imperial College London and is a Fellow of the Royal College of Physicians. She is the author of the Sunday Times bestseller The Full Diet and the accompanying The Full Diet Cookbook and lives in London with her husband and four children.