Sleep

Answer 1

Trans meridional desynchronization&raquo_space;jet lag

Question 2

Circadian rhythm

Answer 2

Persons internal sleep and wake related rhtyms that occur throught the whole day
It is determined by earth’s rotation period 24h

Question 3

Circadian rhythm

Answer 3

7:30Melatonin secretion stops
8:30 bowel movemnt
9 highest testosterone
10high alertness
12
14:30best coordination
15:30 fastest reaction time
17:00 greatest cardiovascular efficient
18:30 highest blood pressure
19:00 highest body temperature
21:00 melatonin secretion starts
22:30bowel movents suprressed
2: deepest sleep
4:30lowest body temperature
6:45 sharpest rise in blood pressure

Question 4

Zeitgebers

Answer 4

Ones include daylight /darkness synchronisation work/rest

External effects not internal

Question 5

Free running rhythm

Answer 5

Whitout this cues ,the biological clock,driven by a major circadian pacemaker in the brain,settles down an internal rhythm of approximately 25 hours (free run)

Question 6

Jet lag

Answer 6

1 day for evry 90 min

Question 7

Dysrhythmia circadian

Answer 7

West is best

East is least

Answer 8

Avoid drinks containing caffeine near bedtime
Avoid napping during the day
Make room comfortable ,avoid emotinal stress
Avoid alcohol and heavy meals

Question 9

Sleep

Answer 9

Is essential to protect the mental and physical health ,in addition to improving the quality of life

Lack of sleep is associated with depression,sucide and risk taking beahviours

Question 10

5 stages of sleep

Answer 10

~1 stage ,non REM»drowsiness,very light sleep,last aboot 10min
~2 stage,non rem»a little deeper stage that lasts about 20min,short periods of fast EEG waves,about 50% of normal sleep is spent in stage2

~3/4 stage /orthodox sleep/slow wave sleep»deep sleep,refreshes the body and allows tissue restoration.
Physical restoring

~5stage /paradoxical sleep/rem sleep»a distinct stage characterized by intense brain activty, dreaming and absence of motor function except that of diaphragm and the muscles of the eye
Mental restoring

Answer 11

Sleep debt is the difference between the amount of sleep yu shhould be getting and the amount of sleep you actually get

It grows every time minutes are skimmed of the normal period

Night time departures ,early arrivals and adjustmetn to different time zones can rattle circadian rhytms,compromises attentionan challenge vigilance