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If you exert yourself too much, the lactic acid can
build up in your muscles and this is what
makes them feel sore after a serious workout
build up in your muscles and this is what
makes them feel sore after a serious workout
Full Transcript
00:00:01.000 --> 00:00:02.075
If you exert yourself too much,
00:00:02.075 --> 00:00:03.833
the lactic acid can
build up in your muscles
00:00:03.833 --> 00:00:05.458
and this is what
makes them feel sore
00:00:05.458 --> 00:00:07.958
after a serious workout.
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Movie Summary
Discover history's most mysterious and bizarre inventions, people and things. From a 440-pound Syrian bear turned soldier to a man who survived a 43-inch iron bar shot through the head.