
Introduction to Psychology 10th Edition by Rod Plotnik,Haig Kouyoumdjian
النسخة 10الرقم المعياري الدولي: 978-1133939535
Introduction to Psychology 10th Edition by Rod Plotnik,Haig Kouyoumdjian
النسخة 10الرقم المعياري الدولي: 978-1133939535 تمرين 3
From birth through old age, there is a decrease in total sleep time, from about 17 hours in newborns to 6.5 hours after age 60. In addition, one stage of sleep, called _____, decreases from 50% of sleep time in infancy to 20% in adulthood. 

التوضيح
16% of adults sleep less than 6 hours a ...
Introduction to Psychology 10th Edition by Rod Plotnik,Haig Kouyoumdjian
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