A study on sleep highlights that we are more inclined to follow the advice, good or bad, of others when we have not slept enough ...
Lack of sleep makes you doubt yourself
When you lack sleep, you would be more likely to take into account the advice you are given ... Even if they are bad! This is one of the findings of a recent study by a group of European psychologists depriving "guinea pigs" of sleep. A danger, says the authors of this study published by the journal Nature, if a leader lacking sleep listens to the latest opinion received even if the one who gives it is not the most expert (1).
Studies of the same type had already underlined how lack of sleep can make you doubt yourself, reduce your self-confidence. Better to sleep a few more hours and not listen to the advice, before making an important decision. Although this may seem obvious, it is at least, now, scientifically proven!
Small downside: the experiment was conducted on a small sample of students is requires more research to confirm these results.
Inclins to listen to the opinions, good or bad
How did the study come to such a conclusion? The participants in this study were divided into two groups, one enjoying a good night's sleep, the other remaining awake 24 hours in a row. When asked about their perceived level of fatigue, they had to estimate the distances separating European cities. After having tried to guess, they were offered to listen to the opinion of third parties, one being judged as "very competent", the other "relatively competent", and change their response in function.
In the end, although the most tired were obviously more difficult to estimate the distances between cities, they were also more inclined to take into account the advice given to them. And this, whatever the skills, known to them, but also the one who had advised them. Moral: do not sleep enough makes it impressionable.
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