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What are examples of endogenous circannual rhythms?
sleep, eating, and drinking
All animals produce endogenous circadian rhythms. T/F
True
Endogenous Circadian Rhythms
internal mechanisms that operate on an approximately 24-hour cycle
Endogenous Circadian Rhythms involve what kind of cycles?
wakefulness and sleep and also regulates the frequency of eating and drinking, body temperature, secretion of hormones, urination, and sensitivity to drugs
Wakefulness and sleep cycles do not change as a function of age. T/F
True
What is the purpose of the circadian rhythm?
to keep our internal workings in phase with the outside world
Zeitgeber
German meaning “time giver”, refers to the stimulus that resets the circadian rhythm. Examples: sunlight (most effective), tides, exercise, meals, temperature of environment, etc.
Using something other than sunlight as a zeitgeber can lead to depression, irritability, and impaired job performance. T/F
True
Jet Lag
refers to the disruption of the circadian rhythms due to crossing time zones
What happens to our circadian rhythms when traveling west?
Nothing
What happens to our circadian rhythms when traveling east?
Nothing
Endogenous Circannual Rhythms
internal mechanisms that operate on an annual or yearly cycle
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