Your smartphone could be stressing you into an early grave

Many of those studies have focused on smartphones’ relationship with dopamine, the chemical released in our brains which is instrumental in forming habits and addictions. Science has found many phones and apps are specifically designed to trigger the release of dopamine to get us as addicted to checking and interacting with our devices.

Research has shown the average American "spends four hours a day staring at their smartphone and keeps it within arm's reach nearly all the time". That is probably the same for people in other countries.