Sir: Excessive use of cell phones is creating many problems like disturbing mental and physical health. The people who uses cell phones frequently are becoming peevish besides its misuse specially by teenagers. Moreover, having cell phone in your hand with internet facility is just like having the world in your hand and without parental guidance our teenagers are misusing it. It is often seen that toddlers are also given cell phones in their hands for their entertainment which is more disastrous as this may cause eye sight disturbance. People of all ages use cell phones in informal and formal gathering which is also against the etiquette. Parents are needed to play their due role to refrain their kids to use cell phones frequently besides parental guidance wherever it is necessary and required and elders too, should avoid excessive usage of cell phones. Faisal Ansar Karachi Published in Daily Times, January 16th 2019.