According to one of versions an ancient legend, the great warrior Genghis Khan while looking for immortality was told by a Tibetan monk in 1222: “There are only ways of nourishing life, but no elixir of obtaining immortality.” Genghis Khan expressed appreciation for his frankness.
However, another version of the legend is the monk said that the secret is hidden in the Land of Mammoth on the Far North. Today the legend comes true with a revolutionary cosmetic product based on extremely long-living microorganisms from permafrost.

By unknown / (of the reproduction) National Palace Museum in Taipei - Dschingis Khan und seine Erben (exhibition catalogue), München 2005, p. 304, Public Domain, https://commons.wikimedia.org/w/index.php?curid=4126191