As we get older, our chances of dying go up. To that, you might say, well, duh. But, when we hit around 80 years old or so, a funny thing seems to happen: Our odds of dying stop increasing and instead start leveling out. So you’ve got the same shot — about 50/50 — of croaking at, say, 110 (an age that would classify you as a so-called supercentenarian) as you would at 95.

It’s an odd phenomenon that’s left experts puzzled for years. Researchers have floated many theories to try and explai