OtherHumann = 92000
Increase in scrotal temperature in car drivers.
Plain-language summary
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 continuously while walking outside for 40 minutes and then driving for 160 minutes. Scrotal temperature rose after two hours of driving, reaching 1.7 to 2.2 degrees Celsius (3.1 to 4.0 degrees Fahrenheit) higher than during walking. The findings suggest that prolonged driving exposes male reproductive function to heat stress.
Key findings
- Scrotal temperature increased after two hours of driving.
- The rise in temperature was 1.7 to 2.2 degrees Celsius (3.1 to 4.0 degrees Fahrenheit) higher than during walking.
How to analyze the study yourself
- Study type
- This design directly measures scrotal temperature in real-world conditions, providing clear evidence of heat exposure during driving, but it does not establish long-term effects on fertility.
- Population
- Nine volunteer men were studied.
- Funding
- Not reported
- Takeaway
- This study found that driving for long stretches raises scrotal temperature by 1.7 to 2.2 degrees Celsius (3.1 to 4.0 degrees Fahrenheit). If you are trying to conceive, it may be worth taking breaks to cool your testicles during long drives.