Căscatul este un proces de obicei involuntar care constă în deschiderea gurii și inspirația profundă în urma căreia plămânii se umplu de aer. Acesta constituie o reacție naturală la oboseală. Este declanșat de obicei de oboseală sau nevoia de somn. Căscatul poate fi scurt sau poate dura mai multe secunde. Este contagios, respectiv caști atunci când vezi pe altcineva căscând sau vorbești despre căscat. Procesul de a căsca poate contribui la scăderea temperaturii de la nivelul creierului.
Fenomenul numit căscat excesiv poate avea prin urmare cauze simple care au soluții rapide și la îndemână, cum ar fi mai multă odihnă, o alimentație mai echilibrată sau suplimentarea dietei cu vitamine și minerale etc.
Citește mai mut în DICȚIONARUL MEDICAL.
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