Monday, March 05, 2007

Keeping them cool for baby

It's interesting to see that a study confirms that some men's sperm count is seriously affected by having hot baths.

The idea that heat is bad for sperm is well known, of course, but it surprises me that no one seems to have done studies on this in the one country where very hot baths are a really popular past time - Japan.

If hot baths can kill off a normal male's fertility, I would expect there to be at least a seasonal drop in conception in Japan during the winter months for those men who regularly bathe. They like their baths hot, and newer houses have ones with a water heater that keeps the bath water at a constant temperature, which certainly encourages a long soak. Has anyone looked at that?

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