Microwave meatballsThe next time you heat up that TV dinner, be careful not to fry your meatballs.

A study of 148 Chinese men found that microwave ovens and other common household appliances generate electromagnetic fields, which can double the odds of male infertility.

Dr. De-Kun Li advises men “to reduce their exposure to electromagnetic fields as much as possible” (i.e., avoid housework).

And you thought the 50s were sexist, but really it was just good science!