As a result of the 4,000-plus chemicals cigarettes contain, 51 of which are known carcinogens, you're literally killing yourself every time you take a drag. When you smoke, free radicals form in your body and these destructive molecules damage your DNA, leading to pale skin
with lots of deep lines. Of course, you already knew all that. What you may not know is that you can quit. Begin by weighing the pros and cons of smoking, being truthful about what you enjoy about it. Then try to figure out ways you could get the same benefits without smoking. As well, learn from any past attempts you've made at quitting by examining what you found useful and what you didn't. It's a hard process and you have to find what works for you, but if you persist, even if you relapse, you will eventually succeed.