Rajeunir, c'est vieux comme le monde…

Legends and myths regarding eternal youth exist since Antiquity. Prior to the 19th century those wishing to rejuvenate used baths or blood injections, searching to the Fountain of Youth or calling for an alchemist claiming to have found the Elixir of Youth. In the 19th century, Charles Edouard Brown Séquard (1819-1894), after the discovery of the function of the endocrinal glands and testicular secretions, inject himself with an extract from guinea pigs and dogs. He found himself rejuvenated! In the beginning of the 20th century, several surgeons transplanted human testicles coming from death row prisoners inmates or voluntary donors. The transplantation of monkey testicles by Serge Voronoff (1866-1951) had a important aftermath and more than 300 similar interventions took place. The simple ligation of the vas deferens (vasectomy) was recommended by Eugen Steinach (1866-1944). Sigmund Freud was one of the “beneficiaries”. Steinach also advised the irradiation of the ovaries for female rejuvenation. In 1935, Alexis Carrel (1873-1944) and Charles Lindbergh (1902-1974) built a pump to feed and regenerate targeted organs. The discovery of pluripotent stem cells and senolytic molecules are building up new hopes on the matter.