What if the key to a calmer, more responsive horse wasn't a new training method, but a better understanding of how the horse's brain actually works? In A Horse's Life: The Neuroscience of Equine Welfare, neuroscientist Dr. Stephen Peters, internationally recognized horseman Mark Rashid, and clinician Crissi McDonald bring together brain science and decades of hands-on experience to explain what is actually driving your horse's behavior and what you can do about it. This is not a training manual. It is the first book to combine real horse case studies with plain-language clinical neuroscience written for everyday horse people. Most horse behavior problems are not attitude problems. They are nervous system problems. When a horse is spooky, hard to catch, resistant under saddle, or just not the horse you hoped for, there is a neurological reason behind it. This book explains what that reason is and how to address it at the source. Here is what you will find inside: Why horses develop reactive, resistant, or shut-down behavior and the neurological mechanisms driving it How pain, poor environment, restricted movement, and social stress quietly reshape your horse's baseline temperament over time How the horse's nervous system learns, builds habits, and responds to training pressure in ways most handlers never consider What the Five Domains of equine welfare mean in daily management and why getting them right changes everything How nutrition and forage patterns directly affect emotional stability and behavioral consistency How the horse's brain responds differently to low-conflict training versus pressure-based methods and why it matters for long-term results How to create the conditions that support learning, trust, relaxation, and lasting behavioral change in any horse This book is for horse owners, trainers, veterinarians, barn managers, and equine professionals who are done guessing and want science-backed answers grounded in how horses actually work. It is for anyone who has ever felt like they were missing something fundamental about their horse and suspected the answer was deeper than technique. Once you see it, you cannot unsee it.