No! I never have a I never will. It is really bad for you and builds up tar and dangerous things on the inside of your lungs. It can have horrible consequences too.
My dad smoked for ages and ages but we convinced him to stop. Most of the labs at my university have really strict rules on smoking, and you can’t go inside if you’ve smoked that day because the molecules stick to you. I cycle a lot too and smoking isn’t very good to for that!