TIL that most Korean people don’t have armpit odor. Only 0.006% of the Korean population have the ABCC11 gene, which is the cause of armpit odor. As a result deodorants are rarely sold in Korea.

Drug harmfulness

Drug harmfulness is the degree to which a psychoactive drug is harmful to a user and is measured in various ways, such as by addictiveness and the potential for physical harm. More harmful drugs are called "hard drugs", and less harmful drugs are called "soft drugs". The term "soft drug" is considered controversial by its critics as it may imply that soft drugs cause no or insignificant harm.

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