Child asthma emergency visits drop after indoor smoking bans

Child asthma emergency visits drop after indoor smoking bans

Fewer children visited emergency rooms for asthma problems in the three years after cities banned indoor smoking than in the three years before, according to a new study.

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After states legalized medical marijuana, traffic deaths fell

After states legalized medical marijuana, traffic deaths fell

Legalization of medical marijuana is not linked with increased traffic fatalities, a new study finds. In some states, in fact, the number of people killed in traffic accidents dropped after medical marijuana laws were enacted. “Instead of seeing an increase in fatalities, we saw a reduction, which was totally unexpected,” said Julian Santaella-Tenorio, the study’s lead author and a doctoral student at Columbia University’s Mailman School of Public Health in New York City.

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We can’t expect virtual reality to make us better people online

We can’t expect virtual reality to make us better people online

Over the past several years, Jack Gallant’s neuroscience lab has produced a string of papers that sound absurd. In 2011, the lab showed it was possible to recreate movie clips just from observing the brain activity of people watching movies. Using a computer to regenerate the images of a film just by scanning the brain of a person watching one is, in a sense, mind reading. Similarly, in 2015, Gallant’s team of scientists predicted which famous paintings people were picturing in their minds by observing the activity of their brains.

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