Do you see the irony in having the meaning of words being completely preprogrammed by what someone else want you to think and feel in a discussion about the word NPC? You know, context matters.
This is really not that much considering how much every stock has gone up the last couple of years. Nvidia and AMD is up 887% and 737% respectively from 5 years ago.
Anti-depressant alter your brain chemicals almost immediately once you start taking them but the anti-depressant effects usually come a couple of months after. Which suggests there might be more to the issue than just a 'chemical imbalance'.