Excessive usage and dependence on cell phone affects our health. It is important to know these effects in young medicos who are the future of our health system. This study was aimed to assess any change in efficiency of the first year medicos based on their cell phone usage time. Questionnaire regarding that was provided to the first year medicos selected for study. Out of 50 students selected for study, 46% used cell phone during class hours and 94% during normal sleeping time. They showed symptoms like fatigue daytime sleepiness, etc. When students gave up their phone for a day they showed signs of possible addiction like anxiety, restlessness, etc. Thus cell phone usage during class hours and normal sleeping time may contribute to daytime sleepiness and affects the cognitive and learning abilities of young medicos.