Biomaterial Database

Effect of daily variation in weather and sleep on seasonal affective disorder. 1991

P S Albert, and L N Rosen, and J R Alexander, and N E Rosenthal

Biometry and Field Studies Branch, National Institute of Neurological Disorders and Stroke, Bethesda, MD 20892.

Analysis of daily self-ratings of energy for 10 patients diagnosed with seasonal affective disorder (SAD) revealed statistically significant seasonal patterns in eight patients (with all patients showing the most energy in the summer and the least energy in the winter). When weather was controlled for, the seasonal patterns in energy persisted in seven of the eight patients. In a lesser number of subjects (four), there were significant effects of weather after controlling for season; however, when the effects of weather on energy were examined separately for each season, 8 of the 10 subjects were found to be influenced by weather in at least one season. Daily sleep data showed statistically significant seasonal patterns in all 10 patients (with 6 subjects showing maximum sleep in winter and 4 in summer). As for the relationship between energy and sleep, a loss of energy appeared to predict longer sleep on that night and the next night (7 of 10 patients), whereas there was no evidence that prolonged sleep influenced energy on the following and subsequent days.

UI	MeSH Term	Description	Entries
D006970	Disorders of Excessive Somnolence	Disorders characterized by hypersomnolence during normal waking hours that may impair cognitive functioning. Subtypes include primary hypersomnia disorders (e.g., IDIOPATHIC HYPERSOMNOLENCE; NARCOLEPSY; and KLEINE-LEVIN SYNDROME) and secondary hypersomnia disorders where excessive somnolence can be attributed to a known cause (e.g., drug affect, MENTAL DISORDERS, and SLEEP APNEA SYNDROME). (From J Neurol Sci 1998 Jan 8;153(2):192-202; Thorpy, Principles and Practice of Sleep Medicine, 2nd ed, p320)	Daytime Sleepiness,Daytime Somnolence,Excessive Daytime Sleepiness,Hypersomnia,Hypersomnolence,Primary Hypersomnia Disorders,Secondary Hypersomnia Disorders,DOES (Disorders of Excessive Somnolence),Excessive Somnolence Disorders,Hypersomnia, Recurrent,Hypersomnolence Disorders,Hypersomnolence Disorders, Primary,Hypersomnolence Disorders, Secondary,Primary Hypersomnolence Disorders,Secondary Hypersomnolence Disorders,DOESs (Disorders of Excessive Somnolence),Daytime Sleepiness, Excessive,Daytime Sleepinesses,Daytime Somnolences,Excessive Daytime Sleepinesses,Excessive Somnolence Disorder,Hypersomnia Disorder, Primary,Hypersomnia Disorder, Secondary,Hypersomnias,Hypersomnolence Disorder,Hypersomnolence Disorder, Primary,Hypersomnolence Disorder, Secondary,Primary Hypersomnia Disorder,Primary Hypersomnolence Disorder,Recurrent Hypersomnia,Recurrent Hypersomnias,Secondary Hypersomnia Disorder,Secondary Hypersomnolence Disorder,Sleepiness, Daytime,Sleepiness, Excessive Daytime,Somnolence Disorder, Excessive,Somnolence, Daytime
D008297	Male		Males
D008875	Middle Aged	An adult aged 45 - 64 years.	Middle Age
D010556	Personality Tests	Standardized objective tests designed to facilitate the evaluation of personality.	Personality Test,Test, Personality,Tests, Personality
D002940	Circadian Rhythm	The regular recurrence, in cycles of about 24 hours, of biological processes or activities, such as sensitivity to drugs or environmental and physiological stimuli.	Diurnal Rhythm,Nyctohemeral Rhythm,Twenty-Four Hour Rhythm,Nycthemeral Rhythm,Circadian Rhythms,Diurnal Rhythms,Nycthemeral Rhythms,Nyctohemeral Rhythms,Rhythm, Circadian,Rhythm, Diurnal,Rhythm, Nycthemeral,Rhythm, Nyctohemeral,Rhythm, Twenty-Four Hour,Rhythms, Circadian,Rhythms, Diurnal,Rhythms, Nycthemeral,Rhythms, Nyctohemeral,Rhythms, Twenty-Four Hour,Twenty Four Hour Rhythm,Twenty-Four Hour Rhythms
D003866	Depressive Disorder	An affective disorder manifested by either a dysphoric mood or loss of interest or pleasure in usual activities. The mood disturbance is prominent and relatively persistent.	Depression, Endogenous,Depression, Neurotic,Depression, Unipolar,Depressive Syndrome,Melancholia,Neurosis, Depressive,Unipolar Depression,Depressions, Endogenous,Depressions, Neurotic,Depressions, Unipolar,Depressive Disorders,Depressive Neuroses,Depressive Neurosis,Depressive Syndromes,Disorder, Depressive,Disorders, Depressive,Endogenous Depression,Endogenous Depressions,Melancholias,Neuroses, Depressive,Neurotic Depression,Neurotic Depressions,Syndrome, Depressive,Syndromes, Depressive,Unipolar Depressions
D005260	Female		Females
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000328	Adult	A person having attained full growth or maturity. Adults are of 19 through 44 years of age. For a person between 19 and 24 years of age, YOUNG ADULT is available.	Adults
D001143	Arousal	Cortical vigilance or readiness of tone, presumed to be in response to sensory stimulation via the reticular activating system.	Vigilance, Cortical,Arousals,Cortical Vigilance