Apr 29, 2026Nutrition

Melatonin Plus Bone Loading: A Promising but Early Trial

Can 5 mg melatonin improve bone-loading results in osteopenia? One 12-month trial found a small spine signal, but the evidence remains preliminary.

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Apr 6, 2026Mental Health

Blue-Light Glasses for Mania: The Best Trial Found No Benefit

Can amber glasses stabilize bipolar mood? A blinded inpatient trial found no benefit for acute mania, despite a plausible circadian mechanism.

bipolar disorderblue lightamber glassescircadian rhythm

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Apr 6, 2026Sleep

Blue-Light Blocking Glasses for Sleep: What Trials Actually Show

Do blue-light blocking glasses improve sleep? Cochrane found very low-certainty evidence, while a healthy-adult trial found no objective benefit from evening lenses.

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Apr 6, 2026Sleep

Morning Light May Matter More Than Blue Blocking Software

Blue-blocking software may improve subjective sleep, but submarine trials show that circadian-informed morning light resets the body clock more quickly.

circadian rhythmblue light exposuremorning lightmelatonin

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Mar 29, 2026Sleep

Rosmarinic Acid + EGCG for Sleep: One Small RCT

Can rosmarinic acid and EGCG improve sleep? One small RCT found secondary score gains but missed primary endpoints. See what the evidence supports today.

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Mar 28, 2026Sleep

Jet Lag for Athletes: Why Eastbound Travel Hits Harder

Travel fatigue and jet lag are different problems for athletes. Learn why eastbound travel can impair performance longer and which countermeasures have evidence.

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Mar 24, 2026Mental Health

Melatonin for Alzheimer’s: Why Dose and Duration May Matter

Melatonin and Alzheimer's: a network meta-analysis points to dose and duration, while MCI data test brain oxidative stress—not proven cognitive benefit.

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Mar 22, 2026Sleep

Light at Night and Cancer: Why the Estrogen Theory Falls Short

Outdoor light at night has been linked to several cancers, but a large endometrial study challenges the simple melatonin-estrogen theory.

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Mar 18, 2026Sleep

Can Personalized Light Timing Improve Sleep in Parkinson's?

A Phase 2 Parkinson's trial found better deep sleep with chronotype-timed light. Why timing may matter as much as spectrum—and what remains unproven.

light therapycircadian rhythmmelatoninchronotype

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Mar 18, 2026Sleep

Night-Shift Sleep: Melatonin vs. Evening Bright Light

Night-shift sleep: when melatonin, evening light, and sleep timing may help—and why fast rotations make full circadian adaptation unlikely for workers.

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Mar 18, 2026Sleep

Can Blue-Enriched Light Reset Your Circadian Clock Faster?

Blue-enriched light sped night-shift clock adjustment in a submarine simulation, but phase-advance trials and real-world field studies temper the promise.

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Mar 18, 2026Sleep

Shift Your Body Clock: Amber Glasses vs. Melatonin

Can you shift a delayed body clock without a lab test? Evidence on 0.5 mg melatonin timing, amber glasses, sleep onset, and limits.

melatonincircadian rhythmdlmosleep phase shifting

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