Getting direct sunlight outdoors for at least half an hour has been shown to produce the most benefit for circadian rhythm regulation.
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Unidentified Speaker — Sleep Smarter by Shawn Stevenson (animated book summary) - … [HPFywqpAdTg]Evidence Quote
“Getting direct sunlight, outdoors for at least half an hour has been shown to produce the most benefit.”
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Sleep Smarter by Shawn Stevenson (animated book summary) - How To Get Better Sleep— Better Than YesterdayCreated: 8/13/2026, 9:47:25 AM
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