PubMed · 7203786
The wakeful "type A" student.
Abstract
Eight type A students and eight that were type B slept in the laboratory for three consecutive nights. Type A showed more fragmented sleep, i.e., more spontaneous awakenings from sleep. No differences in REM pressure between As and Bs could be demonstrated, contradicting the hypothesis that both the personality traits of type A individuals and their coronary-proneness might be explained by chronic REM deprivation of type A individuals.
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D R Lucey, P Hauri, M L Snyder. The wakeful "type A" student.. https://doi.org/10.2190/k75r-7k8y-9v6y-crg2
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