It’s a matter of how used to it you are. In cultures where spicy food are the norm, many are exposed to spicy food from the days that they were born. So they’re used to it. I’ve witnessed Mexican and Korean parents feed their babies raw chili peppers and the babies had no reactions at all. If you eat spicy food your entire life then you become tolerant. Likewise, if you never eat spicy food, you won’t be able to tolerate it.
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