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How Sunburns Work
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Sunburns can be painful, and that's why physicians recommend using sunscreen to prevent sunburn from overexposure to the UV radiation of the sun. See how sunburn and sunscreen work in this... (more info)

Sunburns can be painful, and that's why physicians recommend using sunscreen to prevent sunburn from overexposure to the UV radiation of the sun. See how sunburn and sunscreen work in this HowStuffWorks video.

Related Article: How Sunburns Work

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