RCTHumann = 292011
Protection from scrotal hyperthermia in laptop computer users.
Plain-language summary
This study tested ways to prevent scrotal overheating in men using laptop computers. Twenty-nine healthy men had their scrotal temperature measured during three one-hour sessions: sitting with legs close together, sitting with legs close together but using a lap pad, and sitting with legs apart while using a lap pad. Scrotal temperature rose in all setups, but the increase was smallest when men sat with legs apart. The study concluded that sitting position matters more than lap pads for reducing scrotal heat buildup from laptops.
Key findings
- Scrotal temperature rose in all laptop-use conditions.
- Sitting with legs apart, at a 70 degree angle, with a lap pad led to the smallest temperature rise, 1.4 to 1.5 degrees Celsius (2.5 to 2.7 degrees Fahrenheit).
- Sitting with legs close together caused the biggest temperature rise, 2.3 to 2.6 degrees Celsius (4.1 to 4.7 degrees Fahrenheit).
- Lap pads alone did not prevent scrotal overheating.
How to analyze the study yourself
- Study type
- Randomized trials assign people to groups by chance, so differences between groups are unlikely to come from who chose what.
- Population
- Healthy male volunteers, not men with known fertility issues.
- Funding
- NIH extramural
- Takeaway
- This study found that sitting with legs apart while using a laptop led to less scrotal heating than sitting with legs close together, with or without a lap pad. If you use a laptop on your lap, it may be worth keeping your legs apart to reduce heat buildup.