Louzada et al., "Association of the length polymorphism in the human Per3 gene with the delayed sleep-phase syndrome
: does latitude have an influence upon it?," Sleep, vol.
"But, some evidence suggests that it is effective in treating delayed sleep-phase syndrome
with short-term use," he noted.
A common type of circadian rhythm disorder is delayed sleep-phase syndrome
Familial advanced sleep-phase syndrome
: a short-period circadian rhythm variant in humans.
For some disorders such as sleep walking, night terrors and delayed sleep-phase syndrome
in adolescents, appropriate management is briefly described.
Current treatments for circadian rhythm disorders (e.g., delayed sleep-phase syndrome
) or circadian rhythm dysfunctions caused by sleep disruptions (e.g., shift work, jet lag) may involve chronotherapy, bright light therapy, or melatonin.
Elderly people often experience advanced sleep-phase syndrome
, going to bed at 7 p.m.
There are three types of chronic circadian rhythm disorders: (1) delayed sleep-phase syndrome
(DSPS); (2) advanced sleep-phase syndrome
(ASPS); and (3) irregular sleep-wake cycle.