Dim light at night exacerbates stroke outcome

Stroke lesion size was substantially larger among animals housed in dim light at night compared to those in dark conditions.

• Exposure to dim light at night may impair recovery from stroke in mice.
• Mice in dim light exhibited increased anxiety-like behavior following stroke.
• Dim light at night is associated with amplified pro-inflammatory responses in the central nervous system.
• The findings suggest that light exposure at night could have negative effects on post-stroke physiological processes.

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