Founder and former editor-in-chief of Rejuvenation Research, he is best known for his views on telomerase therapy as a possible treatment for cellular senescence and human age-related disease. Dr. Fossel has appeared on many major news programs to discuss aging and regularly on National Public Radio (NPR). He is also a respected lecturer, author, and physician. Author of Telomerase Therapy, which the Wall Street Journal named as one of the five best science books of the year, and working to bring telomerase therapy to human trials, was a professor of clinical medicine at Michigan State University for almost 30 years and still teaches Biology of Aging as a university professor.