This could bode well as we get older. Researchers have, for the first time, successfully tested a vitamin’s ability to slow the aging process. Scientists in Switzerland say they were able to prolong the lives of mice using this Nicotinamide riboside, which helped regenerate the cells of internal organs. They think this might prove useful in treating a number of degenerative diseases by revitalizing organs and muscles. “We supplied NR as a supplement to the diet of 700-day-old mice, which is an advanced age even for a lab mouse,” Dongryeol Ryu, second author of the study, told Newsweek. “The mice that received the substance lived longer than the mice that didn’t receive it.” there were no side effects.