Yes! 70% ethyl alcohol [ethanol] affects
human cells! Vodka has about 40% alcohol, and
drinking too much of it can damage your liver and
cause other serious problems to your body.
Think of tiny microbes covered with 70%
alcohol, as compared with just having some 70%
alcohol on your hand, which is covered with layers
of skin that protect the cells under the skin.
Our blood cells would probably burst open if we
put them into 70% alcohol. Here's a similar
experiment, where the red blood cells burst open
"I had today an experiment that we put 95% alcohol
to the blood which made it completely transparent
so hemolysis must have occurred. I started to
think about the reasons."
We're so much bigger than microbes, so it takes
much more alcohol, and much more time, for the
alcohol to get into our bodies the way it gets
quickly into tiny microbe bodies.
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