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Early in the day, within the first hour of waking, it's crucial to expose your eyes to sunlight [, ]. This practice, grounded in physiology and supported by scientific research [], is the most potent stimulus for sustained wakefulness and improved sleep quality. While it's important to avoid direct, painful staring into the sun [, ], looking towards it without sunglasses (though corrective lenses are fine) is recommended [, ]. This sunlight exposure triggers specific light-sensitive cells in the retina, initiating vital physiological responses.
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Early in the day, within the first hour of waking, it's crucial to expose your eyes to sunlight [, ]. This practice, grounded in physiology and supported by scientific research [], is the most potent stimulus for sustained wakefulness and improved sleep quality. While it's important to avoid direct, painful staring into the sun [, ], looking towards it without sunglasses (though corrective lenses are fine) is recommended [, ]. This sunlight exposure triggers specific light-sensitive cells in the retina, initiating vital physiological responses.