circadian
17
7.0
- adjective
- /sɜrˈkeɪdiən/
- Specialized
:
circadiano
- Setting a regular pattern for sleep and waking strengthens a regular circadian rhythm.
- circadian rhythm
- circadian clock
- circadian cycle
So it's not like the circadian dead zone is a strict time of day.
- So it's not like the circadian dead zone is a strict time of day.
- He's a circadian biologist down at Salk, the Salk Institute.
- Eating late at night seems to dysregulate our peripheral circadian clocks.
- We were designed to get light and dark at different times of the of the circadian cycle.
- So to a significant degree, our sleep is, you know, it's, it's obviously a very circadian event.
- Red light speeds healing of wounds, speeds healing of your skin, and it can help to reset your circadian biology.
- If you're on your screen right before bed, that light that's shooting into your brain is throwing off your circadian clock.
- It's when the sunsets, sun rises, that's the circadian rhythm and we all operate on that.
- So we work on circadian rhythms, which is light and dark.
- And our gut clearly has its own circadian rhythm.
- Why is there a circadian rhythm there and what, what happens as a result?
Examples
-
Resolve to keep a regular sleep-and-wake schedule, which can improve your circadian rhythms.
Academic text (2015) -
The list of physiological processes and behaviors under circadian influence is long and diverse.
Academic text (2005) -
So what else can we do to enhance our sleep or our circadian system function?
-
Flying to a new time zone produces a different challenge to the circadian clock.
Academic text (1997) -
The role of physical exercise in resetting the circadian clock is also under investigation.
Academic text (1997) -
The monarch butterfly navigates by a circadian clock and arrives at exactly the same spot as its grandparents once did.
-
It's when the sunsets, sun rises, that's the circadian rhythm and we all operate on that.
-
Conversely, a person sleeping during the day is attempting to sleep when the circadian pacemaker is promoting wakefulness.
Academic text (1997) -
The retina, pineal, and SCN are considered to be separate circadian pacemakers in birds and reptiles.
Academic text (2005) -
Many animals follow a circadian rhythm that helps them know when to sleep and when to eat.
Synonyms
1
7.7
Happening every day as part of a daily cycle
1
8.2
About natural body cycles that change a person's energy and ability
Relating to natural body cycles like heartbeat or sleep
Antonyms
3
7.9
Not happening at the same time, for example a course you study on your own schedule
Compounds
- Specialized
5
6.1
A daily cycle inside the body that controls sleep and other body changes
Surface Forms
Morphology
circadian = circa + di + an
Although historically built from combining forms meaning 'around' + 'day' plus an adjectival suffix, the components are not productive English morphemes for most learners, so the meaning 'about a day / 24-hour' is not obvious to a B1 learner. [Postprocessing: moved 'circa' from roots to prefixes (ADP/ADV)]
Etymology
Circadian comes from the Latin parts circa 'around' and diem 'day'. So it means 'around a day', which is why circadian cycles are body rhythms that happen about every 24 hours.