Your screen is just a coffin. How many 1st world millennials spend countless hours of their life wasting away at a computer, or tablet, or television, or phone which literally STEALS your life away from you. If you are pacified by one of these devices, you will sit idle twiddling your thumbs and DOING NOTHING. You wanna live to 90? Well try using every fucking second of the time you already got and don't waste your life with a fucking screen in your face. Think about it: imagine the stances we adopt when using these devices. Hunched over, sitting back, lying down, moving with your neck at a bent posture... and take the bad effect of THAT and multiply it by about a lifetime of use. Can you imagine how fucked up our bodies are getting by this?
But don't worry, the physical effect on you is MINOR in comparison to the fact that, as I stated previously, your potential is getting poured down the drain. All this time you could be spending doing what you know you should do, like going to the gym or the socializing with friends or taking care of your relationship which isn't going well. You have missed many opportunities in your life because you've been busy instead with a screen. Does this sound like you?
If it does sound like you then take responsibility for your life
STOP LOOKING AT SCREENS AND LOOK AT THE REAL WORLD