Sometimes making behavior safer creates more danger. Drivers. Studies indicate that initially antilock brakes did not reduce the number of car crashes. The reason? Knowing that antilock brakes increase auto safety, certain drivers became more reckless because an accident was less likely. Similarly, with studs on our tires, we drive faster when it snows. According to a Canadian psychologist, we even have a “risk thermostat.” A safer environment elevates its setting. Hockey Players. Mandatory helmets also can have unintended consequences. After the National Hockey League required them for new players in 1979, there were fewer head fractures and more spinal injuries. ….[READ]
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