To be honest, I’m not entirely sure of the difference between stress and anxiety and jitters. For me they’re closely related, and I guess I tried to measure some combination of them.

True, more isn’t always more. But more does tend to be more, and this is one of the suggestions people made from the first experiment.

I agree. However, I see this in the context of the first post—the scientific literature has tested theanine and found basically nothing! I was originally convinced that the internet was onto something, but now I tend to think the boring scientific literature had it right all along.