We’ve all heard the statistics about aging America–as the population of baby boomers rounds the curve of 40, the average age of our society is inching its way up. In recent years, horses have experienced a similar population shift. While 100 years ago they were primarily beasts of burden, seldom kept around once their most productive years were over, now our horses are not only work and athletic partners, but are our companions. It has become increasingly important to us to preserve their good health through their "golden years" and to extend their lifespans as long as they can enjoy a "quality" life. Modern veterinary science has provided a vast array of knowledge and techniques that can assist us.