Brain scans are revealing early dementia-like changes in kids and teens from heavy screen use. 60 Minutes Australia reported toddlers spending just 2–3 hours daily on devices already show abnormal white matter development. Teens averaging 6–8 hours display widened brain ridges and thinning in key areas — patterns that mirror early Alzheimer’s. Excessive screens appear to weaken neural pathways that normally strengthen through real-world movement, play, and face-to-face interaction. We’re also seeing the first IQ drops in recorded history, plus a nearly 400% rise in early-onset dementia signs among 35–44 year olds. Correlation, not proven causation — but devices are the major new variable. This is one of those reports that makes you rethink default habits. The convenience of screens is undeniable, but the potential long-term brain impacts on developing kids are hard to ignore. We may be unintentionally running a massive experiment on the next generation’s cognitive health. Are we underestimating the risks of heavy screen time, or is this concern overblown?