Linked from

The 112 pages that link to Circadian rhythm, each with the reason it gives.

• Dark-sky preservationRelated: Nighttime light can shift or suppress biological timing in people and other organisms.

• Decimal timeRelated: Biological rhythms remain tied to the solar day, regardless of clock notation.

• Heart rate variabilityRelated: HRV changes across the day, so comparisons require similar measurement times.

• Multiple Sleep Latency TestRelated: Circadian timing affects daytime sleep propensity and can shape test results.

• DiencephalonRelated: The diencephalic suprachiasmatic nucleus helps synchronize daily rhythms to light.

• Hair growthRelated: Researchers investigate how daily clocks interact with follicle activity and tissue renewal.

• DayRelated: Many organisms synchronize internal timing to the light-dark cycle of the day.

• LightRelated: Light resets the timing of daily physiological and behavioral cycles.

• Mood disorderRelated: Disrupted daily rhythms can accompany mood episodes and influence their timing.

• NightRelated: The daily light–dark cycle helps synchronize this internal timing system.

• RamelteonRelated: Ramelteon's effects depend on the body's circadian system and its timing.

• Solid-state lightingRelated: The timing and spectrum of artificial light can influence circadian signals.

• SomnolenceRelated: Circadian timing can produce predictable peaks in sleepiness even after adequate sleep.

• Cluster headacheRelated: Attacks often recur at consistent times of day, especially during active bouts.

• Time managementRelated: Energy and alertness vary across the day, affecting when demanding work fits best.

• Aziz SancarRelated: Sancar’s laboratory also investigated how circadian rhythms affect DNA repair and chemotherapy response.

• Bipolar II disorderRelated: Disrupted sleep timing can accompany mood episodes and affect their course.

• LunchRelated: Daily rhythms influence hunger and the timing people prefer for lunch.

• NeuroendocrinologyRelated: Daily timing coordinates neural signals with rhythmic hormone secretion.

• SunlightRelated: Daylight helps synchronize circadian clocks in humans and other organisms.

• TemazepamRelated: Circadian misalignment can cause sleep problems that temazepam does not correct.

• WakefulnessRelated: Circadian signals shape when wakefulness is easiest to maintain.

• BedroomRelated: Bedroom light exposure can shift the timing of this daily cycle.

• EveningRelated: Evening light and routines can shift the body's daily timing.

• Sleep disorderRelated: Misaligned internal timing can produce disorders even when sleep itself is otherwise normal.

• Cannabis ruderalisRelated: Plant clocks help interpret light and darkness in seasonal flowering responses.

• Ghost crabRelated: Daily rhythms help regulate the nocturnal activity characteristic of many ghost crab species.

• LethargyRelated: Circadian misalignment can cause drowsiness when the body is expected to be alert.

• Night skyRelated: Nighttime light can disrupt biological timing in humans and other organisms.

• American robinRelated: Daily rhythms help organize robin activity, including dawn singing and nighttime migration.

• Common nightingaleRelated: Daily timing helps explain how nightingales coordinate nocturnal singing and activity.

• CorticosteroneRelated: Daily corticosterone rhythms help reveal interactions between stress signaling and biological time.

• Coupled oscillatorsRelated: Interactions among cellular clocks help coordinate rhythms across tissues and organisms.

• Dark retreatRelated: Extended darkness can disrupt light cues that help regulate daily biological timing.

• DaytimeRelated: Daytime light helps entrain daily rhythms in humans and other organisms.

• Energy (everyday usage)Related: Daily timing can shift alertness and perceived energy across the day.

• Smith–Magenis syndromeRelated: Altered daily timing contributes to the syndrome’s characteristic sleep-wake pattern.

• Banded knifefishRelated: Daily activity patterns in electric fishes can be studied alongside their electric signaling.

• BioastronauticsRelated: Rapid orbital day-night cycles can disrupt sleep and alertness without deliberate light management.

• BiophotonRelated: Some studies investigate time-of-day variation in ultraweak emission as metabolism changes across daily cycles.

• Dolbear's lawRelated: Daily changes in calling behavior can complicate comparisons of chirp rates.

• European robinRelated: Artificial light can shift when robins sing and forage, especially in urban settings.

• Harderian glandRelated: The gland’s indole production has been investigated in relation to daily timing.

• Human body temperatureRelated: Body temperature normally rises and falls across the day, even in healthy people.

• Mood swingRelated: Daily rhythms in sleep and hormones can contribute to predictable changes in mood.

• MorningRelated: Morning light and regular schedules help synchronize this daily biological timing.

• OctodonRelated: Degu studies have helped investigate daily rhythms in a diurnal rodent.

• Set point (physiology)Related: Daily variation means regulated physiological values need not remain at one constant level.

• Sleep in animalsRelated: It determines when sleep propensity rises across the day-night cycle.

• SomnologyRelated: Its timing system helps determine when sleep is biologically favored.