Sexual Behavior in the Japanese Males

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A questionnaire study on the sexual behavior of 1, 633 Japanese males was made. The subjects examined were composed of 733 miners and 900 physicians.<br> The present results show that the intensity of sexual desire are correlated with the general physical vigor. The frequencies of morning erection and potency in coitus decrease steadily with advancing age. Physicians has higher frequencies of marital intercourse than miners. There is no significant difference between American and Japanese males in the frequencies of their marital intercourse in the same age periods.<br> The duration of intromission was longest (12.0-14.2 minutes) in the both groups in the sixth decade of life. There was no remarkable difference in orgasm between the two groups.

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