TY  - JOUR
PY  - 1978//
TI  - Biorhythms and highway crashes. Are they related?
JO  - Archives of general psychiatry
A1  - Shaffer, J. W.
A1  - Schmidt, C. W. Jr
A1  - Zlotowitz, H. I.
A1  - Fisher, R. S.
SP  - 41
EP  - 46
VL  - 35
IS  - 1
N2  - Biorhythm, a theory that purports to identify periods of increased individual susceptibility to accident or misfortune on the basis of recurring biological cycles, is currently enjoying world-wide popularity. In view of the implications of such a theory for both public health and safety, the present study was undertaken as an empirical test of its validity. Using data from 205 carefully investigated highway crashes (135 fatal; 70 nonfatal) in which the drivers were clearly at fault, the authors computed specific points in drivers' biorhythm cycles at which the accidents occurred. The observed frequencies of accidents occurring during so-called critical and minus periods were then compared with the frequencies to be expected on a chance basis alone. The results provided no evidence for a relationship between purported biorhythm cycles and accident likelihood.<p /> <p>Language: en</p> 
LA  - en
SN  - 0003-990X
UR  - http://dx.doi.org/
ID  - ref1
ER  -