I hear everyone repeating this, but in my own experience i was no more tired when smoking than i was after quitting. I’ve had the same profession, the same gymn habits, the same sleep hygiene, the same eating habits, everything the same.

Even when i was dead tired going out partying, nicotine gave me an energy jolt. So I’d have to disagree with this statement based on my own personal experience. For me nicotine always acted like a stimulant first and foremost.