When I was a kid, my parents told me that everyday items are always filled with bacteria, such as banknotes, tabletops, keyboards, smartphones, floor (pick up your fallen food within 5 seconds or it will be infected with bacteria), I grew up told there are millions of bacteria under the fingernails all the time, is this really true? How can they be always there and survive that long if they are on the floor, banknotes etc.? They are living organisms, need to eat something, right? For my thinking there is nothing to eat on the banknotes normally. Can anyone bust this myth or confirm? Thanks in advance.
In: Biology
Even your body has more bacteria in and on it as it has body cells. (Bacteria are much smaller.) The complete digestion system is based on bacteria. They live even in your stomach acid (heliobacter pylori). They protect your skin from being overrun by other bacteria and fungii. You can smell it when they are feasting; that’s not bad. A little wash with a little or no soap at all regulates it.
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