Treatment for<unk>  tries to enable the body clock in the brain, such that a normal long sleep period at night can be achieved. Education about sleep hygiene is important, and counseling can be helpful. Melatonin, vitamin B12, sleep aids,<unk>  aids, and other medications may also be used. Exposure to light during the daytime and activities occurring at regular times each day may help to restore a normal<unk> . The management of this disorder may vary for different subgroups of patients. Affected individuals with dementia should not be prescribed sleep-promoting medications (sedatives) for ISWD due to the increased prevalence of adverse effects in this group outweighing the possible benefits. Circadian<unk>  labeled
Irregular sleep–wake rhythm
Excessive daytime sleepiness
Non-24-hour sleep–wake disorder
Sexual anhedonia
Dyssomnia
Musical anhedonia
Disordered eating
Sleep state misperception