00:00Step into the doorway and press your wrist out into the frame.
00:04Now push as hard as you can for a full minute,
00:07like you're trying to shove the frame apart.
00:10Once the minute's up, step forward and let your arms go limp.
00:14After a second, they'll start rising on their own.
00:18You see, when a muscle works hard for that long,
00:21your brain is still screaming at your arms to push,
00:24even after you have already stopped.
00:26But don't fight it or the feeling disappears.
00:30Thank you.
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