> Many people try theanine and report wow or great for ADHD or cured my (social) anxiety or changing my life.
I'd never heard of that.
All my life I've drank enormous amounts of tea. To the point that I've had withdrawal symptoms from physical caffeine addiction. But I'm only recognizing more ADHD symptoms the more I read about it. (Not a controlled experiment; I'm aware of that.)
I am pretty relaxed, though.