Even though Alex is practicing good posture and taking breaks from his computer after 6 p.m., he may still be at risk for the following computer-related health problems:
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Musculoskeletal problems: Even with good posture, prolonged computer use can still lead to issues such as repetitive strain injuries or discomfort in the neck, shoulders, back, and wrists.
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Vision problems: Staring at a computer screen for extended periods can contribute to digital eye strain, which includes symptoms like dry eyes, blurred vision, and discomfort.
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Sleep problems: Depending on how he uses his computer during the day, exposure to screens can affect circadian rhythms and sleep quality, particularly if he uses devices with screens close to bedtime.
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Headaches: Eye strain and tension resulting from prolonged computer use can lead to tension headaches.
So, all four options—musculoskeletal problems, vision problems, sleep problems, and headaches—are risks that Alex may still face.