alt Hacker NewsFrom the article,
> While observing 422 children ages 3 to 5, a 2022 study led by Radesky found that mobile device use for calming — in other words, a digital pacifier — was associated with “decreased executive functioning and increased emotional reactivity.” (Executive function refers to memory and problem-solving skills needed for everyday life. Emotional reactivity refers to poor impulse control in response to stress, pain, and other negative feelings.)
ADHD is a type of executive function disorder.
The study doesn't claim causation. Instead of mobile device use causing executive dysfunction, it is more probable that the correlation is because mobile device use is more effective at calming down a child with poor executive function than a child with typical executive function. That's not to say it's a good way of calming of course.