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Low Tolerance for Pain May Be Genetic
One form of a common genetic variant may ratchet up pain sensitivity in people who have it, researchers report online March 8 in the Proceedings of the National Academy of Sciences. The discovery could...
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Why It’s So Hard to Tell Which Tooth Has the Ache
When it comes to a toothache, the brain doesn’t discriminate. A new imaging study shows that to the brain, a painful upper tooth feels a lot like a painful lower tooth. The results, which will be...
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Mice Show Pain on Their Faces Just Like Humans
Mice in pain have facial expressions that are very similar to human facial expressions, according to scientists who have developed the “mouse grimace scale.” The pain expressions of mice could help...
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Modified Marijuana Chemical Blocks Pain Without Buzz
By John Timmer, Ars Technica Marijuana contains a complex mix of chemicals, some with medicinal effects, others with an effect that, well, have led it to be classified as a controlled substance. The...
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How Love Makes (Some) Pain Go Away
Gaze upon a lover’s picture, and pain won’t seem so sharp: It’s a poetic truth, and a scientific one too. But is it simply because that image provokes a tiny, on-demand burst of pleasure? Or does even...
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Body May Use Cannabinoids to Make Placebos Work
New evidence suggests part of the placebo effect -- treatment of a symptom using a benign stand-in for a real drug or procedure -- results from the cannabinoid pathway.
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