Scientists crack secret to longevity
(WorldNews Health)

Washington: Scientists seem to have cracked the secret of longevity of supercentenarians -those over the age of 110 years. New studies have found that these really old people possess an excess of cytotoxic CD4 T, a type of immune cells. Scientists used single-cell RNA (Ribonucleic acid) analysis to make the discovery. Supercentenarians are somewhat of a unique group of people. First, they are extremely rare. For example, in Japan in 2015 there were more than 61,000 people over the age of...