How to use it
Don't compare your screen time with your friends'. Watch your own baseline: using more than your usual is the warning sign. Note a normal week, and act when you're above it.
How sure we are
P Evidence: promising. Good studies, but small or few. Use it and keep checking.
Sources
In 11,876 children followed for 3 years, using more social media than their own usual predicted more depressive symptoms the next year, and not the other way round (Nagata et al. 2025, cohort, 🟡).
Not medical, legal or financial advice.