[DOC] [TLE] Sleep - How Sleep Works - Circadian Rhythms [PAR] Human circadian rhythms are regulated by an internal biological clock in the 
brain ... cycle (the word circadian comes from the Latin words meaning about a 
day). ... in the suprachiasmatic nucleus (SCN) in the hypothalamus of the brain, 
one in ... parts of the brain to regulate the daily sleep-wake cycle, body 
temperature,... [DOC] [TLE] Circadian Rhythms, Biological Clock, Chronobiology - Crystalinks [PAR] Circadian rhythms can influence sleep-wake cycles, hormone release, body 
temperature and ... Many travelers have experienced the condition known as jet 
lag, with its ... When you pass through different time zones, your body's clock will 
be ... from the Latin circa, "around", and dies, "day", meaning literally "about a day
. [DOC] [TLE] Glossary of sleep-related terms - Sleepdex [PAR] Definitions of sleep medicine words. ... biological clock: a collection of cells that 
regulates an overt biological rhythm, such as the sleep/wake cycle, or some ... 
The term clenching means you tightly clamp your top and bottom teeth .... It isn't 
classified as a sleep disorder ;it's more properly thought of as an anxiety disorder. [DOC] [TLE] Real-life applications - Biological Rhythms - Circadian Rhythms ... [PAR] The term circadian derives from the Latin circa ("about") and dies ("day"), and, 
indeed, it takes "about" a day for the body to undergo its entire cycle of ... One 
possible explanation of the 25-hour body clock is the length of the lunar day, or 
the .... of lost sleep due to the fact that the sufferer actually is waking up numerous 
times... [DOC] [TLE] Biological Rhythms as a Basis for Mood Disorders [PAR] The circadian clock relies on environmental cues to regulate its function, ... The 
name circadian comes from the Latin circa dia, meaning about a day. ... More 
specifically these physiological and behavioral rhythms control the waking/sleep 
cycle, ... Simply put the diurnal cycle is identical to the circadian cycle, with the 
one... [DOC] [TLE] Sleeping Difficulty - Overview - NY Times Health [PAR] Insomnia comes from the Latin words for no sleep. ... In sleep studies, subjects 
spend about one-third of their time asleep, ... The daily cycle of life, which 
includes sleeping and waking, is called a circadian (meaning "about a day") 
rhythm, ... This nerve cluster takes its name from its location, which is just above (
supra) the... [DOC] [TLE] Sleeping Difficulty - In-Depth Report - NY Times Health [PAR] Insomnia comes from the Latin words for no sleep. ... In sleep studies, subjects 
spend about one-third of their time asleep, ... The daily cycle of life, which 
includes sleeping and waking, is called a circadian (meaning "about a day") 
rhythm, ... This nerve cluster takes its name from its location, which is just above (
supra) the... [DOC] [TLE] SphynxCatVP - (SphynxCatVP) Circadian Rhythm Overview [PAR] It's pretty common among the vampire community for people to report being 
nocturnal ... "Circadian" is a term derived from Latin, and means "about a day. ... 
Circadian disorders, therefore, are conditions in which your wake/sleep cycle is "
out of... [DOC] [TLE] Sleep and Consciousness [PAR]  consciousness selects from its environment what it will be aware of ... 
Psychologists divide the study of consciousness into waking and altered states of 
.... One biological rhythm is the circadian cycle (from the Latin words, "about a 
day"). [DOC] [TLE] Circadian Rhythm Disorder - CGH Medical Center [PAR] The clock cycles around 24 hours (about a day). This is why it is called a 
circadian rhythm (from Latin, circa means about and diem means day). ... A 
circadian rhythm disorder occurs when your internal clock regulating sleep and ... 
Phase Syndrome sleeps well (in terms of duration and quality) when going to bed 
and waking... [DOC] [TLE] Circadian rhythms [PAR]

Question: From Latin for "about a day", it's the term for one's rhythm of sleeping & waking
Answer: Circadian rhythms