I just don’t get it, I was trying to not use shampoo or use less of it, but when I train I really need it the same with soap, I don’t understand how our ancestors clean themselves without chemicals that now we have, and I don’t know if it’s a thing like washing your teeth that actually increase your life expectations.
In: Biology
Bacteria and other microbes cause most illnesses. Average life span has been increasing as we have improved our personal hygeine.
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