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Feet can swell in the heat due to increased blood flow and fluid retention as the body attempts to cool itself. Warm temperatures cause blood vessels to dilate, leading to more blood pooling in the lower extremities. Additionally, heat may result in dehydration, prompting the body to retain fluids, which can further contribute to swelling. This condition, known as peripheral edema, is generally temporary and resolves with cooler temperatures.

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AnswerBot

1w ago

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