Why Do I Get So Distracted When I Study Online?

https://oscar-wiki.win/index.php/The_Instructional_Design_Segmenting_Principle:_How_to_Respect_Learners%E2%80%99_Attention_in_the_Digital_Age

At the end of the day, many students find themselves frustrated and drained after an online study session, only to realize that hitting the books didn’t yield the focus or retention they hoped for