As you fall asleep each night, you can take comfort in knowing you are never truly alone — thanks to the dozens of eight-legged mites crawling out of your pores to party.

Toxoplasma gondii, a parasite spread by cats, can shred human sperm and may be an overlooked factor in declining male ...

"Writing this column is a challenge. I can’t type an entire sentence without stopping to … (excuse me, please, for a moment) ...

Toxoplasma: Some sperm cells had holes in their head, suggesting the parasites were trying to invade them as it would any ...

Infectious diseases such as gonorrhea or chlamydia are often overlooked factors that affect fertility in men. Accumulating ...

Abscess If you notice a painful bump on the roof of your mouth, it could be an abscess—an infection that forms when bacteria ...