Insomnia is an uncommonly common disorder in the modern world, caused primarily by an increase of vata dosha in the mind or nervous system. Insomnia is cause or a complicating factor in many other problems. it may be related to constipation. it may be a result of stress or being overtired, or it may create fatigue and lead to greater stress. it may be a symptom of depression, or it may intensify depression. so we have to deal with it effectively.