What hurts you makes you stronger as a couple. Researchers have found in a small study that S&M activities prompted hormonal changes that could make participants feel closer.
Also in today's links: possible best computer ever, a lame toy based on a good premise
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Science is reinventing play, from extreme sports to gamification to ridiculous roller coasters to the playgrounds of tomorrow, and this issue is chock full of fun. Also, on a less fun note: Did global warming destroy my hometown?