| D008550 |
Melatonin |
A biogenic amine that is found in animals and plants. In mammals, melatonin is produced by the PINEAL GLAND. Its secretion increases in darkness and decreases during exposure to light. Melatonin is implicated in the regulation of SLEEP, mood, and REPRODUCTION. Melatonin is also an effective antioxidant. |
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| D001766 |
Blindness |
The inability to see or the loss or absence of perception of visual stimuli. This condition may be the result of EYE DISEASES; OPTIC NERVE DISEASES; OPTIC CHIASM diseases; or BRAIN DISEASES affecting the VISUAL PATHWAYS or OCCIPITAL LOBE. |
Amaurosis,Bilateral Blindness,Blindness, Bilateral,Blindness, Legal,Blindness, Monocular,Blindness, Unilateral,Sudden Visual Loss,Unilateral Blindness,Blindness, Acquired,Blindness, Complete,Blindness, Hysterical,Blindness, Transient,Acquired Blindness,Amauroses,Bilateral Blindnesses,Complete Blindness,Hysterical Blindness,Legal Blindness,Monocular Blindness,Sudden Visual Losses,Transient Blindness,Visual Loss, Sudden |
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| 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 |
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| D006801 |
Humans |
Members of the species Homo sapiens. |
Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man |
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| D012890 |
Sleep |
A readily reversible suspension of sensorimotor interaction with the environment, usually associated with recumbency and immobility. |
Sleep Habits,Sleeping Habit,Sleeping Habits,Habit, Sleep,Habit, Sleeping,Habits, Sleep,Habits, Sleeping,Sleep Habit |
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| D020920 |
Dyssomnias |
A broad category of sleep disorders characterized by either hypersomnolence or insomnia. The three major subcategories include intrinsic (i.e., arising from within the body) (SLEEP DISORDERS, INTRINSIC), extrinsic (secondary to environmental conditions or various pathologic conditions), and disturbances of circadian rhythm. (From Thorpy, Sleep Disorders Medicine, 1994, p187) |
Sleep Disorders, Extrinsic,Adjustment Sleep Disorder,Environmental Sleep Disorder,Limit-Setting Sleep Disorder,Nocturnal Eating-Drinking Syndrome,Sleep Disorder, Adjustment,Sleep Disorder, Environmental,Sleep Disorder, Limit-Setting,Adjustment Sleep Disorders,Dyssomnia,Eating-Drinking Syndrome, Nocturnal,Eating-Drinking Syndromes, Nocturnal,Environmental Sleep Disorders,Extrinsic Sleep Disorder,Extrinsic Sleep Disorders,Limit Setting Sleep Disorder,Limit-Setting Sleep Disorders,Nocturnal Eating Drinking Syndrome,Nocturnal Eating-Drinking Syndromes,Sleep Disorder, Extrinsic,Sleep Disorder, Limit Setting,Sleep Disorders, Adjustment,Sleep Disorders, Environmental,Sleep Disorders, Limit-Setting,Syndrome, Nocturnal Eating-Drinking,Syndromes, Nocturnal Eating-Drinking |
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