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sleep-wake cycle

DepressionJuly 18, 2026

Circadian Rhythm Disruption May Help Drive Major Depression Biology

TL;DR: A 2026 review in Annals of Medicine argues that circadian rhythm disruption in major depressive disorder (MDD) reaches beyond poor sleep, linking clock-gene variation, sleep-wake timing, stress-hormone rhythms, melatonin signaling, and chronotherapy tar…

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CognitionJune 6, 2026

Seasonal Circadian Disruption May Increase Driver Drowsiness and Crash Risk

TL;DR: A 2026 scoping review in Sleep Science linked seasonal timing, daylight exposure, daylight saving time (DST), sleep-wake rhythm disruption, and driver drowsiness to traffic-crash risk, but found that few studies directly integrate seasonality with chron…

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Circadian Rhythm Disruption May Help Drive Major Depression Biology

Seasonal Circadian Disruption May Increase Driver Drowsiness and Crash Risk

The findings. The context. The caveats.