Acidity eats away at things, sumne—whether it's soil or teeth. When the mouth gets more acidic than pH 5.5, it starts dissolving the enamel, that's the science. But I'll tell you, knowing this didn't stop me from drinking Thums Up every afternoon until my dentist showed me the shadows on my X-ray. My father's fields never got this kind of acid attack, but my city habit? It's a different kind of *chanda* to pay.
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