“Many of us who have observed our own behavior don't need science to prove that technology is altering us, but let's bring some in anyway. Dopamine, the neurotransmitter that records certain experiences in our brain (typically described as pleasurable) and prompts us to repeat them, plays a part not only in sex and drugs, but also the swiping and tapping we do on our smartphones.

Scott Barry Kaufman--- scientific director of the Imagination Institute...gave me the straight dope on dopamine. "It's a misconception that dopamine has to do with our feelings of happiness and pleasure," he said. "It's a molecule that helps influence our expectations." Higher levels of dopamine are linked to being more open to new things and novelty seeking. Something novel could be an amazing idea for dinner or a new book. . . or just getting likes on a Facebook post or the ping of a text coming in. Our digital devices activate and hijack this dopamine system extremely well, when we let them.
...Kaufman calls dopamine "the mother of invention" and explains that because we have a limited amount of it, we must be judicious about choosing to spend it on "increasing our wonder and excitement for creating meaning and new things like art--- or on Twitter.”