Vatha Prakruthi
Vatha, which is identified with the cosmic element of vaayu or air and akash or ether, control all types of movements and is responsible for respiration too. This is the kinetic force in all kinds of biological forms, and controls the body's auto-functions (nerve impulses, circulation, respiration, and elimination and heartbeats etc.) therein. In case of an imbalance (vikruti), vata prakruthi individuals, who are quick in their mental process and initiation of action, tend to suffer from diseases of the neurological system especially motor functions. The diseases are pronounced during the old age, which is the period of vatha (vatha kala). The disease mostly affects the lower parts of the body since they are the predominant seats of vatha dosha. Also, individuals belonging to this type suffer from angina (hridgraha).

Pitha Prakruthi
Pitha Prakriti is consists of agni or teja , the element of heat energy. It is responsible for maintenance of body heat and transforming in nature. All types of outside elements an individual takes-in are transformed into inside elements (microcosm) of the body by pitha . It governs the digestion or proper assimilation of physical, mental and emotional elements of a biological entity. Hence, Pitha is responsible for metabolism in the organ and tissue systems, as well as cellular metabolism. The persons of this prakriti are sharp, quick in action and normally possess a very good intellect as well as grasping power. The pitha prakriti persons are prone to diseases of the digestive and metabolic systems. The diseases mostly affect the abdomen i.e. the area between the chest and umbilicus. Also, pitha disorders are pronounced in the middle ages, which is the period of pitha ( pitha kala ).

Kapha Prakruthi
Kapha prakriti or dosha consists of prithvi (earth) and jala (water). Jala or ap , is essential for sustenance of life. Prithvi , or earth, is responsible for structure and bulk of the material. Kapha is responsible for body form and structure (fluids, fats, bones and muscles). The kapha prakriti endows the individuals with a good physic and strong perseverance but they are slow in their activities. The cold quality of kapha results in poor appetite as their agni or digestion is poor. In case of an imbalance ( vikruti ), individuals tend to suffer from the diseases of the respiratory system especially phlegmatic disorders. The diseases normally affect the upper parts of the body i.e. chest and above. The diseases are pronounced during the early ages (childhood), which is the period of kapha ( kapha kala ). Generally people are a combination of two doshas i.e. dwandvaja prakriti . They possess characteristics of both doshas involved depending on the percentage of the combination. In this case, one is a primary and the other is the secondary dosha . Sometimes people are a combination of all the three imbalances of doshas . But, it is extremely rare to find a balanced state of all the three doshas . Not only the humans but also everything (animals, plants, geographical locations, times of day, seasons and activities performed etc.) in the universe is categorized according to these three doshas . An ayurvedic practitioner formulates a diet plan and recommends herbs for a patient after taking into consideration all these aspects. That's why in ayurveda different people with the same disease sometimes receive different diet and herb plans