Addiction is something without which people cannot live with or something which people are so attracted (don't know the right word) to very much, such that they lose conscious of the outer world and other things.
Now-a-days I see "kids" having either tablets (not the medical ones) or high end smart phones. Their faces are glued to LED screens forever playing angry birds or "socializing" with people via internet and texting. While it does not seem to pose any serious problems in the short term, in the long term it affects the person mentally and physically. I heard somebody say many years ago, your fingers might get defected permanently due to long, continuous periods of texting in mobile phones or turning the analog of the joystick of the PS2. But I don't know if its true. Long hours in front of bright LED screens might affect the eyesight of kids at an early age. Kids, go and see the outside world.
The bottom line is anything that you get addicted is going to harm you one or the other way. Food addiction leads to obesity. The best example would be America. Statistics show that over 1/3 rd of the population of the U.S are obese while India has a mere 5% obese people. Hmm....I did not know this until I googled about this now (:P). I thought it was the other way round.
Most of us are familiar with drug addiction. We are accustomed to the slightly disturbing images of the needles, cigars, alcohol bottles, caffeine and other related drugs. By now, we might also be familiar with its terrible side-effects like lung cancer. Still, people are unperturbed by it. Guess, they have to suffer themselves to realize its pain. Instead of telling them about the side-effects, maybe we must tell them the tube of cigarette that they are smoking puts a hole in the lungs and instantly they die. If you really want to put something in your mouth take a pencil that is provided with a geometry box or a buy a cigarette key chain.
If you think about it, 'the things that we like/ that makes us happy/that gives us pleasure are the ones that harm us'.
So people, stay healthy and strong and don't get Addicted to anything!