Longevity

Cynthia Kenyon (born 1954) trained as a molecular biologist at MIT before starting her own lab at UCSF in the 1980s, initially studying developmental genetics in C.

The free radical theory of aging holds that aging results from the cumulative cellular damage caused by reactive, unstable molecules called free radicals.

Élie Metchnikoff, born Ilya Ilyich Mechnikov in 1845 in what is now Ukraine, was a zoologist and microbiologist whose early career established one of the foundations of modern immunology.

The Hayflick limit refers to the finite number of times a population of normal, non-cancerous human or animal cells can divide in laboratory culture before entering a permanent nondividing.

The National Institute on Aging is the primary United States government agency dedicated to biomedical, clinical, behavioral, and social research on aging.

Before the 1940s, the biology and medicine of aging existed mainly as a scattered set of observations within physiology, pathology, and clinical medicine rather than as an organized scientific field.

The Buck Institute for Research on Aging conducts basic and translational research into the biological mechanisms of aging, operating as an independent.

VO2max, or maximal oxygen uptake, is a physiological measure of how efficiently the heart, lungs, and muscles deliver and use oxygen during maximal exertion.

Loma Linda is a city in southern California that is home to a concentrated Seventh-day Adventist community and Loma Linda University, a Adventist-affiliated health sciences institution.

Roy Lee Walford (1924 to 2004) was a professor of pathology at the UCLA School of Medicine who spent decades studying the relationship between diet, immune function.

Ogliastra is a mountainous province on the eastern side of Sardinia, Italy, historically home to shepherding and small-scale mixed farming communities.

The elixir of life was a substance, or family of substances, that Chinese alchemists and court physicians believed could grant physical immortality or vastly extended lifespan.

The ashrama system is a framework within classical Hindu philosophy that divides an ideal human lifespan into four sequential stages, each with its own responsibilities, disciplines.

Altos Labs is a biotechnology company researching cellular rejuvenation through epigenetic and cellular reprogramming, the process of resetting adult.

Aubrey de Grey (born 1963 in London) trained in computer science at Cambridge and worked in artificial intelligence before shifting to biogerontology in the early 1990s.

Calico is a biotechnology company majority owned by Alphabet Inc.

Caloric restriction means sustained reduction of calorie intake, typically 15 to 40 percent below usual intake, while maintaining adequate protein, vitamins, and minerals to avoid malnutrition.

David Andrew Sinclair (born 1969 in Sydney, Australia) earned a biochemistry degree and a PhD in molecular genetics from the University of New South Wales before joining Leonard Guarente's.

Epigenetic clocks are statistical models that estimate a person's biological age from patterns of DNA methylation, a chemical modification of DNA that changes in predictable ways over the lifespan.

The philosopher's stone was a substance sought by alchemists across the ancient Mediterranean, the medieval Islamic world, and medieval and early modern Europe.

Sauna bathing involves sitting in a hot, typically dry-to-moderate-humidity room (commonly 80 to 100 degrees Celsius in the traditional Finnish style) for roughly 10 to 20 minutes.

Human Longevity, Inc. is a genomics and precision medicine company that combines whole genome sequencing with advanced imaging, metabolomic, microbiomic.

Ikaria is a mountainous Greek island in the eastern Aegean Sea with a population of roughly 8,000, historically relatively isolated and, during periods of the twentieth century.

Fermented soy and vegetable foods form a dietary backbone across Korea and Japan, developed over centuries primarily as preservation methods in climates with pronounced seasonal food.

The Nicoya Peninsula sits on Costa Rica's Pacific coast in Guanacaste province, a historically rural, agricultural area with a lower average income than San Jose or the country's coastal tourist zones.

Okinawa, the southernmost prefecture of Japan, became internationally known in the late twentieth century for unusually high numbers of centenarians and long-lived women in particular.

The idea that mortal humans could become xian, variously translated as immortals or transcendents.

Rasayana is the branch of classical Ayurvedic medicine concerned with rejuvenation, vitality, and the slowing of age-related decline.

Blue Zones is both a demographic hypothesis and a commercial brand.

Cold exposure describes deliberate short-term exposure to cold water (commonly 10 to 15 degrees Celsius) or cold air, typically for one to a few minutes.

Intermittent fasting (IF) and time-restricted eating (TRE) describe eating patterns that cycle between periods of eating and fasting.

Longevity biotech investing spans a spectrum from dedicated specialist funds to large generalist venture firms and individual billionaire backers entering the space opportunistically.

Metformin is a first-line, decades-old oral diabetes medication that lowers blood glucose primarily by reducing hepatic glucose production and improving insulin sensitivity.

The Methuselah Foundation is a US 501(c)(3) nonprofit, based in Springfield, Virginia and led by co-founder and CEO David Gobel, created to accelerate research into extending healthy human lifespan.

Rapamycin (sirolimus) is an FDA-approved immunosuppressant that inhibits mTORC1, a central nutrient-sensing signaling complex that regulates cell growth, protein synthesis, and autophagy.

SENS Research Foundation was built around Aubrey de Grey's Strategies for Engineered Negligible Senescence framework, which divides the biological damage of aging into seven categories.

Traditional Chinese Medicine (TCM) frames aging as a gradual depletion of qi (vital energy) and jing (essence), and longevity practice centers on replenishing both through diet.

Unity Biotechnology was one of the first venture-backed companies built specifically around the senescent-cell hypothesis of aging.

During the Soviet era, the Caucasus region, and Abkhazia in particular, was promoted internationally as home to an extraordinary concentration of centenarians and supercentenarians.

Growth hormone (GH) is a pituitary hormone that stimulates growth in childhood and continues to regulate metabolism, muscle mass, and bone density in adults.

For much of the twentieth century, popular health writers held up the Hunza Valley, a remote mountain region in what is now Gilgit-Baltistan, Pakistan.

Longevity clinics offer paying members, typically for annual membership fees ranging from several thousand to over twenty thousand dollars.

NAD+ is a coenzyme required for hundreds of cellular reactions, including energy metabolism, DNA repair, and the activity of sirtuins, a family of proteins linked to stress resistance and.

Partial epigenetic reprogramming refers to briefly and repeatedly activating some or all of the four Yamanaka factors (often just Oct4, Sox2, and Klf4, abbreviated OSK) inside adult cells.

Senolytics are compounds that selectively induce death in senescent cells, which are cells that have stopped dividing but remain metabolically active and secrete inflammatory factors (the.

The Fountain of Youth is a legend about a spring or river whose waters restore youth to anyone who drinks or bathes in them.

Vilcabamba, a small agricultural valley in southern Ecuador, became known in the early 1970s as the "Valley of Longevity" after local promotion and international media reports claimed the.

Young plasma infusion is the practice of transfusing blood plasma from young donors into older recipients, marketed with claims of reversing aging, dementia, or various chronic diseases.