Lack of sleep enhances
erections and lubrication the next day. This raises the possibility that poorer
subjective sleep quality is related to sexual arousal.
To test this hypothesis,
sexual arousal was elicited in 70 Portuguese women of reproductive age by means
of fantasy. Salivary testosterone before and shortly after fantasy was
determined by luminescence immunoassays.
Participants completed the Pittsburgh
Sleep Quality Index, reported their sexual arousal before and during fantasy,
and how anxious they were after the fantasy. The hypothesis was confirmed.
Anxiety did not explain the association, but testosterone response
(post-stimulus minus baseline) had a slight explanatory effect.
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By:
- 1 Unidade de Investigação em Eco-Etologia, ISPA - Instituto Universitário , Lisbon , Portugal.
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