This text is an excerpt from Elizabeth Blackburn and Elissa Epel’s book, The Telomere Effect. The book explores the connection between telomeres, which are protective caps on the ends of chromosomes, and overall health. The authors argue that lifestyle choices, including stress management, diet, exercise, and social connections, significantly impact telomere length and ultimately influence the aging process. The book provides a comprehensive overview of the science behind telomeres, as well as practical advice for promoting telomere health and extending one’s healthspan.