I totally agree that if there is not a repeating monthly pattern (which can generally be influenced/improved by dietary and exercise choices), then the described behavior may be related to adolescent changes which affect both genders.
For anyone looking for more information, here is one source:
Maturation of the adolescent brain, by National Center for Biotechnology Information (
NCBI), National Library of Medicine (NLM), National Institutes of Health (NIH).
My main point was that while screen time may be a trigger, there may be underlying factors: screen time may not be the root cause of the behavior.