Most people are unaware of the importance of telomere lengths in regulating aging, health, and putting a limit on our life and health spans. That's because most people do not understand telomere biology. The length of telomeres controls all the other Hallmarks of Aging. It's truly the only Hallmark of Aging that we ABSOLUTELY have to control. This book outlines the facts about telomere biology in a world filled with misinformation. Dr. Bill Andrews led the team that discovered human telomerase and showed that using telomerase to lengthen telomeres in human cells slowed, stopped, and even reversed aging by every method of measurement imaginable.