Bacteria in Man
Discover magazine has a cool article on bacteria in man. An interesting datum is that for every one of our own cells we have ten bacteria inside ourselves. Assuming that the bacteria weigh the same as other cells (a poor assumption, I know), that means that there’re only about 16 pounds of me that are me—and 164 that are bacteria!
Fascinating to read how some of the bacteria are essential, and others are harmful, and how the whole thing is rather a delicate balance, as killing off the mildly harmful stuff can open the door to the even worse.

