Health
You may be carrying five pounds of bacteria
HERE’S THE INTERESTING PART
The next time you step on the scale and sigh, just blame the trillions of uninvited guests living inside you. Your body hosts roughly 39 trillion microbial cells, mostly chilling in your digestive tract, which collectively weigh up to five pounds. You aren't overweight; you're just providing a lush, luxury habitat for a microscopic alien civilization.
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