If you're a guy who enjoys sitting through long traffic jams because of your heated car seat, you never have to buy another condom ever again
Heated car seats may keep drivers warm on cold mornings - but they could also lower a man's sperm count, scientists claim.
A study found the electric-generated heat emitted by some driver's seats raises body temperature to a point that interferes with the production of healthy sperm.
It follows evidence from previous studies that men who sit in a car for more than three hours a day, or who work as long-distance lorry drivers or long-haul pilots, could be putting their fertility at risk.
The ideal temperature for sperm production is around 35C to 36C (95F to 97F), just below the average core body temperature of 37C (99F).
If temperatures are much higher - because, for instance, men wear tightly-fitting trousers or underwear, have lo
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