Let’s be honest: Cushing’s is practically the equine equivalent of getting gray hair and achy joints. It’s an age-related degenerative disease. The vast majority of cases show up in horses over 15 years old.
But it’s not normal aging. It’s a specific malfunction. Think of it like this: most old horses still shed their winter coats. A Cushing’s horse holds onto that coat like it’s a security blanket.
The cause is cumulative damage. Each year of life, each bit of stress, each mite of inflammation chips away at that fragile dopamine system. Eventually, it just… breaks. Your horse doesn’t “catch” Cushing’s; he earns it over a lifetime.
Cushing's Disease In Horses | The British Horse Society
