Do you even know that the mouthwash is? I would be scared to put random chemicals in my mouth to swish around.
Dentistry is a joke. The heart thing sounds scary, but these people are usually idiots. They're out there to compensate for shitty lifestyles. None of their shit applies to people who ACTUALLY do the paleo thing.
Shit like that heart thing persist because they really are legitimately scary. Just think, there's no profit/loss test for you to figure out whether the mouthwash works UNTIL IT'S TOO LATE. That shit is scary.
I couldn't just tell you to stop the mouthwash and see what happens, because then you would risk screwing up your heart. That's a profit/loss test that you don't want to lose at. So you stay the course, and keep using the crazy mouthwash.
That's a Class A mind virus. Great technique. It tells you, "There's nothing in your immediate experience that could distinguish between this working or not working until it's TOO LATE. Don't test it. There's too much at stake." Clever, eh?
That way you feel dependent on it and never test its usefulness. It's not like whether your throwing technique is good or bad (whether you hit the target or not or whatever); it's INVISIBILE whether it's working or not. If it's working, you see nothing. If it's not, you still see nothing... until it's too late.
Feeling dependent and never testing its usefulness is great for the survival of a product that's totally useless!
But don't take my word for it. Quitting it might destroy your heart.