My son is 10 and goes on 3-4 mile runs with me a couple times a week. He does not get winded, and has incredible endurance. Is this ok? Some people have told me it is not good for him. Obviously if he complained of pain or exhaustion I would not let him. He loves it!
Dear parent, I understand your concerns but running and swimming are of the most beneficial activities child Chat Doctor.  Running improves the circulation, the heart functions , the respiratory functions and muscle power. However you need to pay a special attention to water and electrolyte balance. This means that swearing a lot makes the child losses water and electrolytes. You need to replace these lost elements. Keep him HY