This is a very well-written, informative article about a very common disease often found in older horses. Hank is shown as the "success story", as he is responding very well to treatment. I would recommend this article to anyone wanting to learn more; issues can be ordered through the American Paint Horse Association's website.

Here are some other links I have found while searching the Web that you may find useful:

Equine Cushings Email Group

Equine Cushings Disease (UK site)

Diagnosing the Disease...

Cushings Syndrome In Horses from Equiworld.net