Hunched shoulders, text neck and curved spine can make your look a few inches shorter than your actual height. If you will not correct your posture, these curves may shift to accommodate your new posture. It will also cause pain in the neck and the back. When working on your laptop or just scrolling through your cell phone, take a break and check your posture. When you have to sit all day in front of the laptop, keep a pillow on your back to correct your posture. You can also practise exercises to improve your posture.