Sleep disorders

Sleep disorders are syndromes that cause persistent sleep disturbance. Sleep disorders can cause emotional distress and inability to function at home or at work. The most common sleep disorders are insomnia, sleepwalking, restless leg syndrome and breathing obstruction (known as sleep apnea). Sleep disorders can also be caused by substances (drugs, caffeine, alcohol), psychological issues (depression, anxiety) or neurological conditions (Parkinson’s, Huntington’s).