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Have you ever wondered what causes bipolar disorder? The answer may be found through an MRI. Learn more about bipolar disorder in this video.

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Watch this Reuters video and see the incredible affects that the HPV virus have apparently had on this Indonesian man, nicknamed "Tree Man". Dr. Anthony Gaspari from the University of Maryland is working with this man to see if he can remove the... More »

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Have you ever wondered what causes bipolar disorder? The answer may be found through an MRI. Learn more about bipolar disorder in this video.

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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.

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Does Daniel really have emotional responses to certain numbers? Learn more about mental conditions in this video.

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Tourette syndrome is a neurological disorder that causes physical and vocal tics. To learn more about Tourette syndrome, check out this HowStuffWorks video.

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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.

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Could a pill that\'s designed to treat type 2 diabetes also be the first anti-aging drug? The pills are based on a substance in, of all things, red wine.

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