Somewhere out there is a bunch of people who are going to live to be 100. In the U.S. alone, there were more than 77,000 centenarians in 2014. Still, that number is very small: centenarians represent less than a quarter of 1% of the entire U.S. population.
So how do you get to be one of them? You could invent a time machine, start your life over and do everything they did, or try to find a way to borrow their genes. Failing that, here are three things that longevity researchers recommend you start–and keep–doing.