Year: 1964 Source: Tohoku Journal of Experimental Medicine, v.84, (1964), p.215-227 SIEC No: 19850581

Seasonal variation of conception rate & suicide death were studied using UN & WHO data. Findings significant to suicide were: the peak of the suicide curve most often occurs in the spring, although this hypothesis is not supported conclusively; the Japanese data indicates seasonal variation of suicide death moves by age group; i.e., the younger the subject, the earlier in spring the peak occurs. It is also suggested that intensified libido that increases conception in spring may be a factor.