Middle-Aged Men Secrete Less Testosterone at Night Than Young Healthy Men

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منابع مشابه

Symptoms of testosterone deficiency in early middle aged men.

UNLABELLED Symptoms of testosterone deficiency and concentrations of testosterone (T) and bioavailable testosterone (BT) were studied in 35- and 45-year-old men. METHODS A questionnaire, was sent to all 35- and 45-year-old men in Linköping, Sweden (n=1998). The questionnaire has earlier been used for 55- to 75-year-old men and included demographic data, medical history, different symptoms pos...

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Testosterone and gonadotropins but not SHBG vary with CKD stages in young and middle aged men

BACKGROUND The aim of this study was to assess the effects chronic kidney disease (CKD) had on sex hormones and lipids in a subgroup of men between 18 and 50 years old with CKD 1-5 stage without diabetes and not treated with hemodialysis. METHODS Data were collected from 101 men with different CKD stages. RESULTS Higher CKD stage (lower function) had a significant negative linear trend on t...

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Testosterone dose-response relationships in healthy young men.

Testosterone increases muscle mass and strength and regulates other physiological processes, but we do not know whether testosterone effects are dose dependent and whether dose requirements for maintaining various androgen-dependent processes are similar. To determine the effects of graded doses of testosterone on body composition, muscle size, strength, power, sexual and cognitive functions, p...

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Linear model for physical activity prediction in healthy middle aged men

Introduction: The usage of valid, reliable, rapid and low cost instruments for measurement of physical activity (PA) volume are essential in epidemiological and clinical studies. The purpose of this study was to develop a new physical activity prediction model using physiological and anthropometric variables in middle aged men. Methods: Daily physical activity was measured with pedometer throug...

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ژورنال

عنوان ژورنال: The Journal of Clinical Endocrinology & Metabolism

سال: 2003

ISSN: 0021-972X,1945-7197

DOI: 10.1210/jc.2002-021920