I don't smoke, but I do use nicotine gum from time to time to help focus. I find it faster acting and more effective than caffeine, with a shorter half-life.

I don't smoke, but I do use nicotine gum from time to time to help focus. I find it faster acting and more effective than caffeine, with a shorter half-life. I should probably talk to my doctor to see if I have ADHD, instead of occasionally self-medicating.