Longevity
Longevity or anti-aging technologies are more sophisticated than you could possibly imagine, but do they work? Whether long life is worth pursuing as a lifestyle strategy is up to you. These technologies look for methods to slow or stop aging and, if possible, repair present age induced damage. Typical life expectancy was 25 years or less throughout most of history for human beings. No prehistoric remains have been recovered from people older than 50. After all, people used nearly all of their time living as hunters in Stone Age circumstances, without modern medicine and no giant scale environmental upgrading. In addition to these harsh environmental conditions, with little exceptions, wars, malnourishment or infection ended lives before any of the symptoms of old age (such as graying of the hair, wrinkling of the skin, shortened memory, decreased strength, and reduced vision sharpness) appeared. With the development of civilization individuals learned to regulate their environment plu...