Constantly staying connected on social media appears to have negative mental health consequences for many adults and children. In a recent study published in the journal Psychology of Popular Media Culture, researchers found that people who post a large number of selfies tend to have higher levels of certain narcissistic traits and more fragile self-esteem. They also describe a condition called “phantom pocket vibration syndrome,” in which you feel your phone vibrating even when it isn’t. The researchers say that it’s worth examining how you use social media. If you feel the need for instant gratification or peer pressure, if you are trying to imitate someone, or you are focused on whether what you post is liked or not, you could lose sight of what really are the most important things in life.