A scientist scraped a black dot on his forehead and put it under a microscope. He saw dozens of tiny face mites, aka Demodex mites, crawling around on the plate. Demodex are harmless and like to live ...

If you’re arachnophobic, it’s best to stop reading. This isn’t about spiders, but another type of arachnid — the microscopic ones living in the hair follicles on your face. Yes, I’m talking about the ...