system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why do smokers crave a cigarette more directly after a meal?

The title says it all.

It seems to be the case for every smoker I know.
gpt
The best part of smoking for me was always the routine of it. You wake up on a cool, crisp fall morning, light that smoke and have a moment of reflection with a smoke. You're at a party and someone gives you the look, and you know you're going to have a cool conversation, almost a party in a party, outside on the driveway or whatever with the other smokers. That cup of coffee or whiskey after work, light a smoke. 

Same with after a meal. Especially if you had a nice meal, then you get to do this other thing you really enjoy, and it's relaxing and cathartic.

Part of why it's so hard to stop is because you basically begin rewarding yourself for doing regular old stuff. It becomes routine.