An improper diet and lifestyle causes aggravation of Vata (Ayurvedic humor representing Air) that
travels through the channels of the head causing sleeplessness. Vata is aggravated by increased
intake of tea and coffee, especially, before going to bed; long gaps between meals; and intake
of cold and dry food, cabbage, lettuce, beans, cauliflower, broccoli, peas, rice, and smoked foods.
Suppressed emotions, disturbed sleeping patterns, worries, anger, overwork, overexcitement, and ill
health may be other responsible factors.