Overview

• Research shows that morning exposure to blue-enriched light stabilizes daily activity patterns and reduces sleep fragmentation in older adults.
• Evening exposure to the same light disrupts sleep, leading to longer times to fall asleep and lower sleep efficiency.
• Participants spending more time in bright natural daylight experienced stronger daily rhythms and earlier bedtimes.
• The study suggests light therapy as a non-pharmacological, affordable solution to age-related sleep issues, promoting better overall well-being.
• Researchers emphasize the importance of maximizing morning light exposure while minimizing blue light in the evening for optimal sleep health.