Smartphone , the simple evidence based , behavioural issue

Smart phones and people are two things something not separate that from one another. Children, adolescents and adults use smart phones. Their intensity with their smart phones varies. Smart phones provide a variety of features, not just to receive and make long-distance calls,activities such as self and edit it for hours, watching movies, surfing the Internet, games, social media and others can also be done. Various data show that the cumulative time of this activity results in a high level of smart phone usage, both in children, adolescence and adulthood. So, what about old adult?