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Light Therapy Good For Skin (1:21)
Watch this video showing how light therapy can be good for battling skin-related conditions on HowStuffWorks. Learn how light therapy works and how it can help to treat certain skin conditions, in moderation. Video courtesy of MultiVu.
How Sunburns Work (0:58)
Sunburns can be painful and dangerous to your health, so doctors recommend avoiding the sun or using sunscreen. Learn about sunburn in this HowStuffWorks video.
Sun and Skin (1:26)
Watch this video about the sun and our skin on HowStuffWorks. Researchers have found that Vitamin D created in the skin can trigger an immune response in the skin itself. Learn how human skin works in this video from ScienCentral.
Not Getting Enough Sun Can Be Harmful (1:32)
We often associate getting too much sun with getting cancer. But, is not getting enough sun even more harmful? A new study reveals a surprising relationship between sunlight, vitamin D, and cancer.
Organ Systems: The Integumentary System (0:27)
The integumentary system creates a boundary between the human body and the outside world.
