Nap😪今天你“打盹”了吗？

1. Most people aim to get their recommended seven to nine hours of sleep in one long stretch at night and the technical term for this is mono-phasic sleep, in other words a single bout of sleep at night. However we may not have been programmed to sleep in this way. 2. If I place electrodes on your head, there is a reliable pre-programmed drop in your brain’s alertness during the afternoon and it happens to most of us somewhere between the 1 to 4 pm mark. What this suggests is that we may have been designed to sleep in a bi-phasic pattern, meaning one longer bout of sleep at night and then a short afternoon nap during the day. 3. Naps can be a double-edged sword. Long naps in the afternoon or in the early evening can just take the edge off your sleepiness. It’s a little bit like snacking before your main meal, so if you are struggling with sleep at night, the best advice is not to nap during the day. 大多数人的目标是在晚上一次长的时间里获得推荐的7到9个小时的睡眠，对应的专业术语是单相睡眠，换句话说是夜间的一次睡眠。然而，我们可能没有被设定为以这种方式睡觉。 如果我把电极放在你的头上，你的大脑的警觉性在下午有一个可靠的预定下降，它发生在我们大多数人身上，在下午1点到4点之间。这表明我们可能被设计成双相模式的睡眠，也就是说晚上睡较长一段时间，然后在白天的下午小睡一会儿。 小睡可能是一把双刃剑。在下午或傍晚时分的长时间小睡可能会减弱你的困倦感。这有点像在正餐前吃零食，所以如果你在晚上睡眠方面有困难，最好的建议是不要在白天午睡。