Question

When would it be appropriate to consider a sports drink instead of water to re-hydrate?
(1 point)

When lifting heavy weights for 30 minutes.

When running for less than 20 minutes.

When doing crunches and sit-ups for 15 minutes.

When walking for less than 45 minutes.
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Answer 1

None of the above. For activities under about an hour (including 30‑minute weight sessions, 15–20 minute core work, or a sub‑45 minute walk/run) plain water is sufficient. Consider a sports drink only for prolonged (>~60 minutes) or very intense exercise, or when you’re sweating heavily and need to replace electrolytes and carbs.