I can tell you from experience that anything that stimulates dopamine production in your brain is bad news. I could not drink cofee for 2 years after a couple of years clubbing in London.

I can tell you coke is £50 for a few hours of fun, but it's not worth it. Turns you into an instant twat.

I don't do any of that crap now, but I'm happy to have the odd redbull during a game of poker.

All things in moderation. What comes up must come down.