William H. Andrews, PhD

Bill Andrews, PhD is the Founder and CEO of Sierra Sciences, a company focused on finding ways to extend human lifespan and healthspan. Bill has been featured in Popular Science, The Today Show, The Doctor’s TV Show, and numerous documentaries on the topic of life extension. Bill co-stars with Dr. Aubrey de Grey in the documentary “The Immortalists” that made it to the “Top-10-List” to receive an Oscar in 2014. Bill was also featured in other documentaries such as “Longevity Hackers” (2024), “Immortal” (2010), that won an Emmy, and many more.

Bill is also an ultramarathon runner with over 100 ultramarathons under his belt. Bill believes that consistent and fun endurance exercise is one of the best ways to reduce inflammation and slow aging.

Bill received his Ph.D. in Molecular & Population Genetics in 1981. Population Genetics is the study of the “Why” and “How” of Evolution as opposed to just the “What” and “When” that most evolutionary biologists focus on. Molecular Genetics, on the other hand, is the study of how to Control our own Evolution through genetic engineering.

Bill’s areas of research have included Dwarfism, Cancer, Cardiovascular Disease, Inflammation, Osteoporosis, Anemia, Multiple Sclerosis, Aging, and many others. Before founding Sierra Sciences Bill was a Medical Researcher at Armos Corporation, Codon Corporation, Berlex Biosciences, Geron Corporation, and EOS Biotech. Bill played key roles in the discoveries and inventions of: Human Growth Hormone (hGH), Prorennin (Prochymosin), Tissue Plasminogen Activator (tPA), Osteo-Inductive Factor (OIF), Thrombomodulin, Erythropoietin (EPO), Beta-Seron, HT Site Specific Mutagenesis, Various Cancer Treatments (Rytelo, Telomelysin, GV1001, UV1, mutant hTR, and others), Telomerase, TRAPeze, TA-65, hTERT mRNA RT-PCR HTS, Telomerase Gene Therapy, C0314818 (TAM818), TeloSMRT, Isagenesis (Product B), Premere, Telo-Vital, Rytelo, and many more.

In 1997 Bill was awarded 2nd Place as National Inventor of the Year for his cancer research. In the early-to-mid 1990s, while at Geron Corporation, Bill led the research to discover both the RNA and protein components of human telomerase, the enzyme responsible for preventing telomeres from shortening in our reproductive cells.

Most recently, Bill’s studies have focused on “Why” and “How” our species has evolved mechanisms to eliminate the longer-lived. These mechanisms include cancer, heart disease, and anything related to the decline and failure of multiple organs and tissues. Eliminating the longer-lived increases our species’ genetic diversity which increases our species’ ability to survive rapidly changing environments. Aging is just an accumulation of all the different ways we have evolved to eliminate the longer-lived. The benefit to the species of eliminating the longer-lived explains why we have never evolved a way NOT to age, and never will, unless we do it ourselves.