I have a friend who is an American Indian. Not necessarily pertinent, but he has an extreme and stoic personality that I would think unusual from any of my other non-Amerind friends.

Anyway he has a love for the sucking-on-a-salted-lemon thing. Did it several times per week in spite of warnings from his friends. Pretty much everyone told him it would hurt his teeth.

So he continued till he started to notice something visible happening to his teeth. Then he did it longer until it started to make his smile look odd (he is gay and unattached - this had an effect on his love life). Then he stopped and was sorry about the whole mess.

Now, years later, he has had some capping done and he looks better. Cost him a fortune, though.

Moral of the story: let's not wait till the climate messes up our love lives before we get smart about it.