Why do people smoke or drink?

nice question , i am a non smoker even usually i think that if guy is in tension and starts smoking , by this how can they make get pleasure but i think it is the only wastage of money and health .

I hate those who drink and smoke.There is no use to do them instead of spoiling their lives and others lifes.I dont think no one will get relief when they smoke or drink .we have to face any situation what ever it may be.Few youngsters think that smoking and drinking brings them a new style but they were wrong.Any person will be recognised by their nature and behaviour

I started smoking as a teen when i gave into peer pressure as an adult it does help ease the stress but i wish i never started because now i cant stop

nowdays people try to present themselves as cool and in order to do so they start smoking and drinking and which in my opinion is wrong..if they really want to impress others then they should others their inner qualities not how they look

no tension never be relieved,not enjoying and never be found pleasure.but after drink and smoking they forgot themselves, and after some time they lost their very important time for these nonsense. but they do not have thinking ability so they drinks and smokes.