You know its bad for you...you still can't resist

Exactly what the title says. Its just the unstoppable urge of doing something that you have wanted for a long time but you know is so wrong for you, something that says explicitly 'I am WRONG' but you still want it. Its like a pack of cigarettes, a pack that mentions 'Warning: Smoking is injurious to health' and yet it doesn't stop such a large population of the world from smoking. Their justification, oh this doesn't always result in lung cancer, or we're going to die one day so what difference does it make. I am in no position to judge them, nor is anyone else. I believe everyone around me has done something in their life, which they knew was bad for them, and yet they went ahead and did it, because it felt good. The thing is, do we really need to know when to draw a line. While fulfilling a desire, when do we know that we're not playing safe anymore and have reached a point of no return. Is this why we should abstain from temptations in the first place? But then why do people say that its better to fall and get up, because that is the only way you can learn. What an oxymoron this life is, you need to learn in order to live, in order to learn you need to fall and learn from your own experiences and mistakes, but at the same time you should resist all temptations and not get to a point where you will fall. How do you fall if you resist taking a risk? And how do you learn if you don't fall? I guess I am just going in circles here. It is probably another chicken-and-egg problem. Prevention is better than cure, but then if you have never been diseased, how will you ever find a cure?

On another note, can we even differentiate between what we really want and what we need. We can mistake our 'want' for what we 'need' and when we realize it, it can be too late. There is so much in life that we want and so little that we need, but if only we could see the difference and apply it, life would probably be simpler and uncomplicated. But then as humans, no matter how much we tell ourselves that we need our lives to be simpler, we probably have an exceptional talent for complicating our lives, at least I do.