![The surprising reason our muscles get tired - Christian Moro](https://i.ytimg.com/vi/rLsimrBoYXc/sddefault.jpg)
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TED-Ed TED TED Ed Teded Ted Education animation christian moro nichola latzgo exercise muscles human body muscle fatigue tired after exercise sore after exercise tired muscles muscle soreness muscle tiredness why do muscles fatigue fatigue treatment muscle weakness ATP energy health human physiology science of exercise