美国科学60秒 SSS 2013-03-12（在线收听）

 　　Don't forget to move your clocks forward this weekend and then don't forget to be more careful when the day is after you adjust your clocks because 2009 study found the hour loss of sleep was related to increase job related injuries. Probably because sleepy workers were less alert. The researchers publish in the Journal of applied psychology. Organisational behavior psychologists Christiphe Bons and David wangerner analyse the reports by international institute for occupational safety and health about injuries that took place in minds. The Study looked all reports between 1983 and 2006, and they found compared with other days, more injuries happened on the monday after day like saving time when interfact injuries were more severe. Survey data found people sleep on average 40 minutes less on the sunday night right after the time change. the data also review that on monday is after switch to standard time when we gain an hour sleep there is no significant difference in sleeper injuries. So enjoy the extra hour sunlight, in the evening carefully.