WHO recommends: Adults should limit recreational screen time to under 2 hours per day. For work-related screen use, follow the 20-20-20 rule: every 20 minutes, look at something 20 feet away for 20 seconds.
Excessive screen use can lead to: eye strain, blue light sleep disruption, neck/wrist pain, and sedentary health risks. Take regular breaks, use blue light filters, and maintain proper posture.