Here's another reason to turn on the air conditioning and leave the windows up: driving a lot -- especially with the window open -- appears to contribute to skin cancer, at least in men.
A researcher put it this way:
Why keep the windows up? Because they provide some -- although not a whole lot -- protection from the sun.
The weird thing is that women seem to be much less affected by this. The press release doesn't speculate about possible reasons why. Maybe because there are fewer women who drive a lot? Or maybe men just like to keep the windows open and stick their elbows out more than women?
New Study Finds Time Spent Driving An Automobile May Increase Skin Cancer Risk [press release]