Passage Summary: Sweet drinks can be good for athletes because they encourage drinking and help the body absorb water, but drinking too much sugar actually causes the body to lose water and get more dehydrated.

Reasoning: Sugared drinks can help hydration and energy, but excessive sugar intake reverses this benefit by pulling water from the blood into the stomach, worsening dehydration.

Analysis: In a 'Must be False' question, we are looking for a statement that directly contradicts the rules established in the stimulus. The text provides a nuanced view: sugar is helpful in small amounts but harmful in large amounts regarding hydration. An answer choice that claims large amounts of sugar never contribute to dehydration, or that sugar has no beneficial effects on water absorption, would be impossible given these premises. Focus on identifying a choice that ignores the 'tipping point' where sugar stops being helpful and starts being harmful.