Many social media platforms hire 'attention engineers', who use gambling principles to try and make these platforms as addictive as possible, with the goal of maximising the profit that can be extracted from your attention and data. Manipulative design tactics snatch your attention in small bites throughout the day, with dopamine driving that addiction by delivering a small "high" for each notification, message or like. Our society is effectively putting highly addictive "drugs" into the hands of increasingly younger children, and schools are picking up the pieces.
The impact on young people in particular, who are saturated with this technology, is significant for several reasons. This continual stimulation is all new for our brains from an evolutionary perspective, with potentially wide ranging cognitive consequences. Extensive device use can have a negative impact on our ability to think, remember, pay attention and regulate emotion.