What do you guys think of this study:
BMJ 1995;310:1289-1291 (20 May)
Contribution of dihydrotestosterone to male sexual behaviour
Christos S Mantzoros, Emmanuel I Georgiadis, head, Endocrine Unit,a Dimitrios Trichopoulos, professor and chief b
a 401 Military Hospital, Athens, Greece Christos Mantzoros, resident in medicine, b Department of Epidemiology, Harvard School of Public Health, Boston, Massachusetts 02215, USA
Correspondence to: Dr Mantzouros, Department of Endocrinology, RN 324, Beth Israel Hospital, Harvard Medical School, 330 Brookline Avenue, Boston, Massachusetts 02115, USA.
Abstract
Objective: To document the relative importance of endogenous sex steroids in modulating the frequency of orgasms, the dominant aspect of sexual behaviour in healthy eugonadal men.
Design: Measurement of adrenal and testicular sex steroids in a sample of army recruits and study of their relation to frequency of orgasms ascertained by questionnaire after potential confounding variables were controlled for.
Setting: Military campus and military hospital laboratories in Athens, Greece.
Subjects: 92 consecutively enrolled healthy male recruits aged 18-22 years.
Main outcome measures: Weekly number of orgasms. Serum concentrations of testosterone, dehydroepiandrosterone sulphate, dihydrotestosterone, oestradiol, oestrone, -4-androstenedione, and sex hormone binding globulin.
Results: Serum dihydrotestosterone concentration was the only independent hormonal predictor of the frequency of orgasms; an increase in concentration of 1.36 nmol/l (about 2 SD) corresponded to an average increase of one orgasm a week.
Conclusions: Differences in concentrations of circulating dihydrotestosterone within the normal range may represent a major predictor of sexual activity in healthy young men.
My own DHT level is below the range and I’m wondering if its the DHT (and not testosterone itself) that is the culprit for sexual dysfunction.