Exposure to Natural Light in the Morning Enhances Alertness

A recent study from Osaka Metropolitan University demonstrates that controlled exposure to natural light before waking can significantly enhance morning alertness and reduce sleepiness. Researchers conducted experiments on 19 participants to evaluate the effects of three different lighting conditions using light-shielding curtains. The findings revealed that 20 minutes of natural light exposure prior to awakening led to a noticeable improvement in wakefulness compared to continuous light or no light exposure. However, excessive early morning light was found to have detrimental effects, indicating that moderation is crucial. The study highlights the importance of optimizing bedroom environments to foster better sleep quality and morning readiness.

Exposure to Natural Light in the Morning Enhances Alertness

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