circadian rhythms

Question 1

circadian

Answer 1

last around 24 hours- sleep and wake

Question 2

EP

Answer 2

endogenous pacemakers- internal body clocks that keep bio processes to time

Question 3

EZ

Answer 3

exogenous zeitgebers that are external cues that alter our internal to match environment

Question 4

sleep wake cycle EP

Answer 4

suprachiasmatic nuclear- master clock part of the hypothalamus

Question 5

EZ for sleep wake

Answer 5

light is our primary
but others like meal made

Question 6

circadian positive

Answer 6

siffre- lived in a cave for 6 months with no natural light or potential EZ like clocks
body clock maintained a regular cycle of 25 hours
suggesting it’s there but needs EZ

Vetter- 27 office workers exposed to strong blue light shifted the timing of circadian rhythms to match the office lighting - ez is strong

Question 7

circadian negative

Answer 7

individual differences - morning people v night
studies no eco validity as artificial