No idea on that front. The caffeine one struck a chord because I'm a slow metaboliser, and it can cause me issues with anxiety under the wrong circumstances. It

No idea on that front. The caffeine one struck a chord because I'm a slow metaboliser, and it can cause me issues with anxiety under the wrong circumstances. It does make me wonder how many cases of anxiety are at least exacerbated by genetic issues with processing caffeine and other stimulants.