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 Black widows and brown recluses: They're the spiders we fear, but could you tell whether one's bitten you? Here are the symptoms of a bad spider bite.
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 From ticks to mosquitoes, from spiders to snakes, here are 12 tips on how to avoid bits and stings and trips to the ER on your next hiking trip.
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 Do you know how to clean a cut properly and when it needs stitches? Make sure you're right with this quick-and-easy guide.
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 What to keep in your car survival kit in case of a winter emergency.
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 People who have drowned in cold water are sometimes resuscitated thanks to the mammalian diving reflex. Here's how it works.
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When you see someone having a seizure, trying to figure out how to help can get scary. But there are plenty of things you can do.
West Nile virus is most prevalent in the summer and fall. Learn the symptoms and how to avoid this mosquito-borne illness.
Have you heard of frostnip? It's a less severe version of frostbite. Learn symptoms and treatments for both.
Hydrogen peroxide can damage healthy cells when you use it to clean a wound, this doctor says. Here's his advice on minor wound treatment--starting with plain old water.