Really guys? On my 20th birthday, I gave a Double Red, which means they take twice as much Red Blood Cells, and put the plasma back in. In any case, I celebrated that whole day by smoking blunts, and I didn't notice anything astronomical about it. Yea i got retarded as shit, but no more than I would have. I think I even asked someone there if it was cool to smoke after. I'm sure they didn't say it was "cool", but there was nothing wrong with it lol

My 20th was 2 years ago, and Iv smoked a decent amount since and before that, so I could just be displacing the memory. Good for ya tho, next time I give I'll definitely pay more attention.