Elissa Epel, Ph.D. is an international expert on stress, well-being, and optimal aging and a best-selling author of The Telomere Effect, and now The Stress Prescription.  She is a Professor in the Department of Psychiatry & Behavioral Sciences, at The University of California, San Francisco, where she is Vice Chair of Psychology and directs the UCSF Aging Metabolism Emotions Center. She studies how psychosocial and behavioral factors, such as meditation and positive stress, can slow aging and focuses on climate wellness.