20130630

World Science Report


Scientists recreated a game often used to assess
people's altruism -- but this time there was a
twist, and a darker result.



Remember mom's advice about washing your hands
thoroughly after using the restroom?



Daily use of sunscreen slows skin aging in the young
and middle-aged, a study has found.



If you're still turning up your nose at "online
dating," you might want to think again, research
suggests.



Tests designed to check brain activity for signs of
guilty memories are in use in several countries --
but they're not foolproof, a study indicates.



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