Most people know what they are supposed to do. Eat less. Move more. Try another diet. Yet despite countless books, diets and weight-loss programmes, obesity, insulin resistance and metabolic disease continue to rise. Why? Because surprisingly few people are ever taught how the body actually works.

In Why We Get Fat, author and healthcare professional Martin Hesketh uses a simple but powerful factory analogy to explain the complex systems that govern metabolism, energy storage, appetite, insulin resistance and long-term health.

Rather than offering another quick-fix solution, this book explores a different possibility: What if weight gain isn't the problem? What if it's the symptom of a body adapting to its environment?

Using clear explanations and real-world examples, Martin takes listeners on a guided tour through the body's "industrial estate", where cells become factories, blood vessels become roads, fat stores become warehouses and insulin acts as the warehouse manager directing traffic and storage.

Along the way, you'll discover:

• Why the body stores fat
• How insulin really works
• Why hunger changes
• What insulin resistance actually means
• Why weight regain is so common
• How stress, sleep and activity influence metabolism
• Why medications can help without being magic bullets
• What your blood markers may be trying to tell you
• How the body constantly adapts to the signals it receives

Free from fads, gimmicks and diet dogma, Why We Get Fat offers a fresh perspective on weight gain, metabolic health and the body's remarkable ability to adapt to its environment.

Whether you're struggling with your weight, living with insulin resistance, or simply curious about how your body works, this book will help you understand what is happening beneath the surface.

Because before we can change the outcome, we first need to understand what the body is trying to tell us.