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The moderating impact of lifestyle factors on sex steroids, sexual activities and aging in Asian men

Asian Journal of Andrology 2011年第4期13卷 596-604页

作者： Victor HH Goh Terry YY Tong Division of Endocrinology Department of Medicine at David Geffen School of Medicine University of California Los Angeles at Harbor-UCLA Medical Center Torrance CA 90502 USA Department of Obstetrics and Gynecology National University of Singapore Kent Ridge 119074 Singapore

The present study sought to evaluate the relative associations of exercise, sleep and other lifestyle habits with aging, sex hormones, percent body fat （%BF） and sexual activities in men living in the community. A better understanding of this complex interrelationship is important in helping the formulation of modalities for a holistic approach to the management of aging men. The results showed that age is a major determinant for many physiological parameters, including sleep, hormonal and metabolic parameters, some lifestyle factors and sexual activities. Testosterone （T）, bioavailable testosterone （BloT） and dehydroepiandrosterone sulphate （DHEAS） concentrations decreased with age, while estradiol （E2）, sex hormone-binding globulin （SHBG） and %BF increased with age. In addition, there exist intricate associations among hormonal and lifestyle factors, %BF and age. High-intensity exercise and longer duration of sleep were associated with higher concentrations of T and BloT. T was shown to be associated positively with men who were engaged in masturbation. DHEAS was associated with men wanting more sex and with good morning penile rigidity. Older Singaporean men tended to sleep for shorter duration, but exercised more intensely than younger men. Coital and masturbation frequencies decreased with age, and a significantly greater number of younger men were engaged in masturbation. Relationship between the partners is a key determinant of sexuality in men. It appears that T may have a limited, while dehydroepiandrosterone （DHEA） have a greater role than previously suggest, as a motivational signal for sexual function in men. Both biological and psychosocial factors interact with each other to influence sexual functions in men. Hence, a biopsychosocial approach may be more appropriate for a more lasting resolution to sexual dysfunctions in men.

关键词： age Asian men duration physical exercise sex hormones sexual activities sleep lifestyle factors

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