How's that immune system of yours??
Scientists, wanting to just make sure we never sleep again, have calculated that healthy people play host to more than 10,000 species of microbes and germs!
Here's the horrifying part (the other horrifying part, at least) — if you collected ALL the bacteria and microbes you're swimming in, they could weigh a FEW POUNDS.
A lot of them DO work to keep us healthy, but still.
Just THINK about it. Your skin, up your nose, in your butt.
The scientists want to move on to figuring out why some of the bad ones hurt some more than others!
That would be pretty interesting to know!
[Image via AP Images.]