Social media has become a major part of daily communication, learning, entertainment, and social interaction across different age groups. This brings new challenges for mental health, emotional stability, sleep, loneliness, and the greater psychological balance and well-being. Most of the available research shows that concerning use of social media and use that is simply too much leads to poor emotional stability, anxiety, and greater stress and depression. However, most studies assess social media use for discrete age cohorts and/or examine social media use in conjunction with other screen time use and do not provide detailed accounts of age-based differences in use, emotional response, and related impacts. This study examines that gap by studying how social media use impacts the mental health and emotional well-being of youths, adults, and the elderly. This study analyzes social media use, exposure, mental health, and emotional well-being in different age groups. The study shows increasing social media use, social media use with passive observation, and social media use with little to no control may lead to emotional vulnerability, especially in youths and young adults.