Was ist eine Schlafparalyse?

What is sleep paralysis?

Sleep paralysis is a rare but well-known phenomenon and describes the condition in which we wake up from sleep at night as if paralyzed. But what e...

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Warum gähnen wir?

Why do we yawn?

Yawning is considered a sign of tiredness and lack of sleep. There are numerous theories about the cause and meaning of the natural breathing refle...

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