Vatha regulates movement and is represented by the nervous system. Too little Vatha causes nerve loss, congestion, constipation, thoughtlessness etc and too much Vatha leads nerve irritation, high blood pressure, confusion etc. Vatha problems are predominant in old ages and dry climates or cold autumn winds increases Vatha.

Pitta is the principle of biotransformation and is the cause of all metabolic processes in the body. Too little Pitta causes indigestion, inability to understand, sluggish metabolism etc and too much Pitta causes ulcers, hormonal imbalance, irritated skin (acne), consuming emotions (anger). Pitta related problems are predominant in teens and adulthood. Hot summers or hot climates will increase Pitta.

Kapha is the principle of cohesion and functions through the body fluids. Together, these three doshas determine the physiologic constitution of an individual. Too little Kapha experiences a dry respiratory tract , burning stomach (due to lack of mucous, which protects from excess stomach acids), inability to concentrate and too much Kapha causes Mucous build-up in the sinus and nasal passages, the lungs and colon. In the mind it creates rigidity, a fixation of thought, inflexibility etc. Kapha related problems are predominant in childhood years. Wet winters and a damp climate increases Kapha.