Dim light at night before injury slows skin wound healing in female mice

Mice exposed to dim artificial light at night (LAN) showed significantly larger wounds on days 5, 7, 8, and 9 compared to those in regular light conditions.

• Dim LAN exposure prior to wounding is linked to impaired wound healing in mice.
• Mice exposed to DLAN consistently exhibited larger wounds compared to those kept in regular light conditions.
• Average time to wound closure was increased in mice subjected to DLAN.
• The findings suggest that LAN may have harmful effects on physiological processes such as wound healing.

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