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The 'Dehydration/Electrolyte Theory'
It speculates that a significant disturbance in fluid or electrolyte balance, usually due to a reduction in total body exchangeable sodium stores, causes a contraction of the interstitial fluid compartment around muscles and a misfiring of nerve impulses, leading to cramps. And
The burning sensation we sometimes feel during exercise is caused by a build-up of lactic acid. The burning sensation we sometimes feel during exercise is caused by a build-up of lactic acid.
