长途驾驶喝咖啡有助减少车祸

Long-distance lorry drivers who drink coffee have fewer road traffic accidents, research suggests.

研究发现，喝咖啡的长途货车司机出车祸的次数较少。

Australian investigators say they found the link while comparing 530 heavy goods vehicle drivers who had recently been in a crash with 517 who had not.

Coffee and other beverages containing the stimulant caffeine cut crash risk, probably because they boost alertness, the British Medical Journal reported.

Road safety experts stressed caffeine was no substitute for sleep.

In the study, more than a third said they drank caffeinated beverages and half of these said they did so in order to stay awake.

The drivers who consumed caffeine to keep them from nodding off behind the wheel were 63% less likely to crash than drivers who had no caffeine.

This was after adjusting for factors such as age, sleep patterns, kilometres driven, breaks taken and night-driving schedules.

Nap advice

If the driver had a poor track record of crashes in the past five years this had an impact on their likelihood of having another crash, raising their risk by 81%.

About 70% of the drivers in the study said they stopped for a nap when they were tired - something that road safety experts strongly recommend.

Lead researcher Lisa Sharwood and colleagues from the University of Sydney say while it is clear that tired drivers should be taking breaks, it still not clear what activities benefit them most during these breaks - napping or drinking coffee.

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