Reverse Aging, by Sang Whang, was copyrighted in 1990 and first published in 1991. With over 60,000 copies in print, it is regarded as the original scientific thesis of the new theory of aging.

The author receives phone calls and mail from all over the world in praise of his work. It has been translated into Polish, Chinese, Spanish, Japanese, German and Korean by volunteers who wanted to share the information with their countrymen.

The fact that excess acid is a major contributing factor of aging and degenerative diseases has been suspected for a long time. Reverse Aging, by Sang Whang, is the first book on the scientific explanation of this phenomenon; it is also the first to examine the concept of reverse aging strictly on a scientific approach.