Forty-nine years ago, Carl Bourhenne noticed his father beginning to show his age. That observation launched a lifelong commitment to understanding the aging process and discovering how it could be slowed naturally. In 1977, he founded the Carl I. Bourhenne Medical Research Foundation to study the biology of aging and identify practical ways to extend healthy human life. In 1980, Carl returned to school and earned a master's degree in gerontology from California State University, Dominguez Hills. His academic work later became the basis for his landmark book, How To Live The Longest Life Possible, now in its 15th edition.