The bugs, they’re all over me!

Those who are inclined towards itchy self consciousness after reading about the amazing variety of life to be found living on and in our bodies should probably not read The top 10 life-forms living on Lady Gaga (and you).

I thought I had heard of most kinds of bugs that live in and on us before, but the article still contained a few surprises (or things I had forgotten about.) For example:

Inside your lungs is a kind of fungi called Pneumocystis. It cannot live outside of human lungs. No one has been able to grow it anywhere else.

And (emphasis mine):

I will wager that Lady Gaga’s head is crawling with mites. They live in her pores and come out to have sex under the shade of her wig while she is on stage. Well, not just then. They do it other times too. She could have more than one kind of mite. Forehead mites (Demodex spp.) have not been well studied and they are so small that differences among species might be impossible to detect simply by studying how they and their parts look under the microscope (which is all that has been done). Where these mites have been studied, they have mostly just been counted. They are more common on older people than on younger people. The exception to this pattern is among the Tokelau islanders where the pattern is the reverse (more mites on younger people) for reasons unknown. On average--the Tokelau Islanders in the audience notwithstanding--more than half of us have forehead mites and quite a few of us host two species. Some of us may even host as of yet unnamed species. Every so often these mites are badly behaved (they are linked to rosacea, although innocent until more convincingly proven guilty), but mostly they seem to have no effect on our lives. Maybe they are even good for us? Who knows? What is clear is that they bury themselves in our pores and eat.

Update: you can read more about face mites here.

Actually, I did recall reading before about a particular mite that lives in the base of eyelashes, and it turns out they are the same thing. I was just a bit confused by them being called "forehead mites". Wikipedia notes:

It is quite easy to look for one's own Demodex mites, by carefully removing an eyelash or eyebrow hair and placing it under a microscope.

Umm, not sure I want to know, when they look like this:


As for their possible role in rosacea, it's interesting to note this (from a couple of links back):

Over the years, considerable evidence has accumulated that Demodex folliculorum may at least play a role in certain skin conditions, particularly papulopustular rosacea. Patients with immunity problems, such as AIDS patients, appear to be particularly susceptible. Symptomatic infestation with demodex mites is called demodicidosis or demodex folliculitis.

While the role of demodex in disease is still unclear, treatment for skin problems in cases where there are many mites present now often includes a topical antiparasitic cream. Treatment successes where the mites were targeted provide further indirect evidence that face mites cause skin problems, at least in some instances.

Excuse me while I go practice how long I can hold my breath while keeping my head in a bucket of rubbing alcohol.