Micro-sleep can last for up to 15 seconds, often with fatal consequences. It can happen to anyone, especially on long journeys (particularly on motorways), after eating or drinking alcohol, if you're taking medicines or simply suffering from a lack of sleep
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|  | If you start to feel sleepy or are aware that you are losing concentration:
 pull over and have a nap for at least 15 minutes
drink at least two cups of strong coffee
open the car window to let in fresh air
plan a rest stop every 2 hours
These temporary measures lose their effect after 10 minutes and should only be used to provide time to find somewhere safe to stop and rest - they are not a substitue for real sleep |