As long as we are on the topic of toenails, we need to review the effects of dehydration on our skin, which includes toenails. This subject is often overlooked by athletes. Dehydration and the loss of important electrolytes can have a negative effect when hours of physical exercise cause stress to the extremities as fluid accumulates in the hands and feet. Fingers and toes often swell as they retain fluid because of low blood sodium (hyponatremia). This causes foot problems as the soft, …
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