health

Health & Medicine

Is marijuana really an effective drug? Surprisingly, scientists have no solid answer

The movement to legalize marijuana for medical use continues to gain momentum in the US. Twenty-three states and the District of Columbia have approved marijuana for medical use and a handful of states allow recreational use of the drug. As the debate continues, one surprising fact emerges: There is no strong scientific evidence to support the arguments of either side.

Science, Tech & Environment

Bilingual babies practice lip-reading long before monolingual counterparts

You’re in a crowded restaurant. You can’t make out what your companion is saying. So your eyes start to drift to your dining companions' lips, to make out what they're saying over the din. That’s because when speech is hard to hear, lip-reading provides extra clues for comprehension. It turns out we all learn this skill as infants. And bilingual infants do it the more than others.