The “stoner” stereotype isn’t just a myth. Heavy use of marijuana in the teenage years dulls intelligence—and the loss of IQ points may last for life, according to a new study. Researchers tested the IQs of more than 1,000 New Zealand schoolchildren at age 13, before most had tried marijuana, and again at age 38. In between, they regularly surveyed […]
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A new analysis of 166 studies on childhood vaccines has come to a resoundingly clear conclusion: Vaccination does not cause autism and is extremely safe and effective.The Agency for Healthcare Research and Quality commissioned a systematic review on the subject in response to the rise of the anti-vaccine movement which has been blamed for recent outbreaks of measles and whooping […]
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“Losing is good for you,” said Ashley Merryman. But as your children return to school and fall sports, they are stepping back into a fantasyland where everybody is a winner and everybody gets a trophy. “Trophies were once rare things,” but manufacturers now churn out $3 billion worth of them a year. In one California youth soccer league, every player […]
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