[damienkatz]

Really? A spiders reaction to caffeine is your reason? I just quit caffeine. I'm ready for some conformation bias to justify my decision, but this is pretty weak.

[zinssmeister]

I agree the spider-caffeine-thing is "weak". But it's a popular argument and I don't have anything more substantial at hand. Most people I know, that still drink coffee/caffeine do tell tales of feeling "wired" and "scattered" after consumption.

[digi_owl]

That will depend on person and dosage thought.

From persona experience i either have to go a few days without or drink my third cup (drip brewed) of the day to get anything noticeable.

[adfm]

Really!? Nice web. https://www.google.com/url?sa=t&source=web&rct=j&url=http://...

[pkinsky]

L-Theanine (amino acid found in green tea) supplements solve that problem.