Table 1 Causes of fatigue and difficulty initiating sleep, and methods used to initiate sleep among the 602 responding to multiple choice questions.

Work hours and/or demands of work

84

41

Emotional stress from work related activities

53

49

Family commitments

49

27

Changing circadian rhythms

85

66

Other

4

1

   Maintaining sociality

1.3

-

   Relationship problems

0.5

-

   Eating habits

0.7

-

   Financial stress

0.3

0.2

   Medications

0.4

-

   Hormonal cycles

0.2

-

   Stress over household maintenance

-

0.3

   Lack of exercise

-

0.2

   Pregnancy

-

0.2

   Health problems

-

0.2