Caffeine can really be something. It can also be... basically nothing for folks. I am very curious to know if there are larger studies that can quantify some

Caffeine can really be something. It can also be... basically nothing for folks. I am very curious to know if there are larger studies that can quantify some of this. And I emphatically do not mean that some people have tolerances to it. Though, I do expect that a large enough dose will impact anyone. I suspect it is a lot like catnip. I think most people that have had cats have had situations where one of the cats just does not care about the stuff. At all. Versus many cats that get quite an extreme reaction to it.