Now days we all have a smartphone,each and every person are looking with the smartphone. Cell phones used to just be communication tools. Now, they’re GPS, cameras, gaming consoles, health trackers, and the list goes on. We turn to our devices for everything — from waiting in line at the grocery store or reading the news, to filing our taxes or controlling the thermostat. We don’t just use our smartphones for everything — we rely on them. Morever in civid-19 our education system are going with the smartphones,now every children hands are locked with smartohone. The brain on"smartphone"is the same ad the brain on cocaine:we get time our screen lights uo with a new notification.it's all thanks to doapmine,the fell-good chemical that gets released every time you do something you enjoy,like eating your favourite meal or getting a hundred like on your letest intagram post.dopamine reinforcing(and motivates)behaviuor that makes us fell good and,in turn,can create addiction.