Stress, fatigue, sleep, time zone changes

Question 1

stress

Answer 1

An individual phenomenom, subjective in nature and resulting from an excess of environmental demands.

Question 2

Fatigue

Answer 2

Accumulation of unreleived stress

Common causes is insufficient good quality sleep, working too hard, or working too long without adequate rest.

Question 3

Sleep

Answer 3

4 stages
1 = light sleep, 4 = heavy sleep.
REM (rapid eye movement) occurs adjacent to stage 1.
REM needed for good quality sleep. REM is reduced by alcohol. Fatigue is reduced most effectively by stage 3 and 4.

Question 4

Naps

Answer 4

Plan 40-60 minutes. involves stage 1 and 2 and REM. May only last 10-15 minutes.

Question 5

Refreshing affects of sleep

Answer 5

Waking up from stage 1 or 2 nap can be refreshing. If nap goes on longer, waking up from stage 3 or 4 is not refreshing.

Question 6

Micro sleep

Answer 6

Nodding off. Not understood why, but appear to be benificial on tiredness.

Question 7

Time to readjust to time zones

Answer 7

1 hour per day.

Question 8

Bodies natural clock

Answer 8

If left to self regulate, body clock is 25 hours