There are several theories about what’s going on, but the one that seems to feel right to a lot of people is that the computers that are so good at helping us save time are just as good—or better—at helping us waste time. This seems especially true since the advent of the smart phone. The tools we have to help us be productive are filled with distractions that kill productivity.
You're not a software company, but you still want to improve your productivity, which means getting more useful things done in less time. As a student, one of the best things you can do for both the quality of your study time and how much study time you need is follow the company's lead and find quiet places for concentration. This may sound obvious, but I know from years of teaching that lots of students try to do their studying in loud and distracting places. (Extreme example: I once saw a student doing AP Calculus homework at her senior prom.)