[Internal clock desynchronization and public health consequences].

Chronic exposure to light at night is associated with clock desynchronization and health issues.

• Clock desynchronization may occur when the internal clock is out of sync with environmental cues.
• This desynchronization can lead to fatigue, sleep disorders, and mood disturbances.
• Shiftworkers and nightworkers are particularly affected by clock desynchronization as a public health concern.
• Many children and adolescents are getting 7-8 hours of sleep instead of the recommended 9-10 hours due to nighttime electronic media use.
• Sleep debt in this population may contribute to fatigue, behavioral issues, and lower academic performance.

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