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Originally Posted At: https://breakingmuscle.com/feed/rss

Researchers have discovered energy production in muscles is a function of the quality of the mitochondria that power the cells.

Our stamina comes from our ability to produce energy efficiently over a period of time. In our muscles, energy production comes courtesy of mitochondria. The more mitochondria we have, the longer we can go. Endurance athletes may have twice the normal number in their muscles. The rest of us may be feeling the fatigue after a long walk, cycle, or run much quicker. 
 

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