I got quite good answers. thanks to everyone for participating.
In: 2573
You need strong alcohol to kill bacteria efficiently.
When you mix alcohol with another liquid it becomes less strong.
Whenever you put alcohol inside the body it stats to mix with the blood and other liquids inside your body and start to spread out and get thinner. So you end up with a not-very-strong alcohol that’s spread out in the body instead of the small concentrations of strong alcohol you would need to kill the bacteria.
Doctors *do* use alcohol a lot for cleaning their tools and for cleaning external wounds, cuts etc, because then they don’t have the same problem.
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