Yes, please quit.
Consider this, the subcellular biochemical effects are bad enough, but there's icky smoke floating all around in your sinuses and inner ear coming in DIRECT contact with the very tissue you need to protect.
It's a bad double whammy.
A cigarette is the worst drug going because it'll give you what you want.
If you're down, it'll pick you up.
If you're up, it'll chill you down.
If you're hungry or thirsty it'll fill you up.
If you're shy, you'll become social.
If you're bored, it'll stimulate your thoughts.
On and on...
I wonder if it could take T away temporarily?
I used to think it took my bad headaches away because sometimes I'd have a smoke and my headache would go away.
Nicotine will lie to you.