THE GLP-1 LEGACY: A Behavioural Psychology Approach to Sustainable Weight Maintenance Paperback – March 4, 2026

Significant weight loss changes the body quickly, but long-term stability depends on habits, identity and behaviour. When pharmacological support reduces or stops, appetite rises, old routines resurface and emotional triggers often return.THE GLP-1 LEGACY is a behavioural psychology framework for sustaining weight loss beyond short-term appetite suppression. It focuses on the psychological transition that follows rapid physical change and addresses the real reasons people regain weight: appetite fluctuation, emotional eating, stress, social pressure, alcohol, routine drift and the gradual return of familiar coping strategies.This book is for anyone navigating life after GLP-1 treatment and asking: how do I maintain this in the real world?Inside, you’ll learn how to:• Understand changes in hunger, cravings and eating behaviour• Respond constructively to appetite shifts• Reduce emotional eating using structured behavioural tools• Navigate restaurants, holidays and social situations with confidence• Handle alcohol realistically• Rebuild habits when motivation fades• Manage identity and body image after significant weight loss• Recognise early signs of regain and respond calmly• Build a sustainable long-term maintenance planRather than offering medical advice, this book provides a structured behavioural approach grounded in cognitive and health psychology.We are Martin and Marion Shirran, authors of two previous books published by Hay House New York, with over 15,000 hours of one-to-one clinical experience supporting lasting behaviour change. Our previous work has been endorsed by Professor Windy Dryden and the late Professor Philip Zimbardo.THE GLP-1 LEGACY includes a foreword by Professor Jane Ogden of the University of Surrey, one of the UK’s leading health psychologists, whose research has shaped modern understanding of eating behaviour and long-term change.If you want to protect the progress you’ve made and build something stronger than short-term appetite suppression, this book provides the psychological tools to do it.Not just weight loss: a legacy. Read more