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Testosterone & Hormones

Peer-reviewed research on testosterone, hormonal regulation, age-related change, and the lifestyle factors associated with male endocrine health.

80Studies

80Human studies

2026Most recent

11Countries

Diurnal scrotal skin temperature and semen quality. The Danish First Pregnancy Planner Study Team.

International journal of andrology2000n = 60 men

CohortHuman

This study asked whether the ordinary, everyday variation in scrotal temperature is enough to matter for sperm. Sixty men from a group of couples planning their first pregnancy wore a…

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Increase in scrotal temperature in car drivers.

Human reproduction (Oxford, England)2000n = 9

OtherHuman

This study set out to test whether driving a car for long stretches raises scrotal temperature, a known risk factor for sperm health. Nine men had their scrotal temperature measured…

Heat Stress Higher Testosterone Low Testosterone

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