Doctors may have a lot more time to respond to strokes than they thought. Studies in the New England Journal of Medicine show that with quick brain scans to pinpoint stroke locations doctors may have as long as 24 hours after a stroke to administer clot busting drugs. Previously doctors believed they had only 6 hours to act. The results of the studies are reflected in new stroke treatment guidelines issued by the American Heart Association and the American Stroke Association, and experts say they could save thousands of lives and disabilities per year.
Ever wonder why we have a gut feeling to trust some people and not others? It could have to do with how much they look like people we’ve known in the past. A study in the Proceedings of the National Academy of Sciences finds that if someone even remotely resembles someone whose burned us in the past we’re unlikely to trust them. And if they resemble someone whose done well by us in the past we’re more likely to think they’re okay.
And finally… evidence that sugar comas are real. A study in the journal Physiology and Behavior finds that people’s cognitive performance and attention are impaired after they consume sugar, especially simple sugars like glucose. And the effect is especially bad if people haven’t eaten in a while.
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