According to Ayurved, the root cause of any disease is always the imbalance of tridosha namely vata, pitta and kapha. To truly heal, one must understand why one has the disease or imbalance.
Every individual's constitution has its own unique balance of Vata, pitta, and Kapha. When this balance is disturbed, it creates an imbalance. Health is order, disease is disorder. Order lies within the disorder.
The internal environment is governed by Vata, pitta, and Kapha which are constantly reacting to the external environment. A wrong lifestyle disturbs the balance of Vata, pitta, and Kapha which affects the Agni (digestive fire) and produces ama (toxins). This ama enters the bloodstream and is circulated throughout the body, clogging the channels. Retention of toxins in the blood results in toxaemia. This toxicity results in disease.