00:00Your feet literally age slower than your head every single day.
00:04Gravity pulls harder on your lower half, warping time itself around your body.
00:09The National Institute of Standards and Technology measured this exact time warp.
00:15Separating two optical clocks by just one millimeter changes how fast they tick.
00:21Clocks higher up experience weaker gravity, causing them to race ahead into the future.
00:27Because gravity warps both space and time, the higher clock takes measurably faster.
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