When dosha dhatu and mala of the body is in their state of equilibrium and soul mind and senses are in the state of harmony then the body is said to be healthy.
Doshas are the vital forces of the body that controls all the physiological activities i.e. metabolism of the body.
Altogether there are three doshas –
a) Vata, b) Pitta and c) Kapha.
Vata controls all the movement of the body. Pitta controls the digestive and other catabolism processes of the body. Kapha lubricates the body and controls the anabolic functions of the body. This way dosha controls all the physiological function of the body.
Dhatu forms the somatic structure of the body. There are seven Dhatus i.e. tissues in the body. They are rasa (Plasma or body fluid), Rakta (Blood), Mansa (muscular tissue), Meda (Adipose tissue), Asthi (Skeletal tissue), Majja (Nerve tissue) and Shukra (Reproductive tissue). Their functions are Rasa – Nutrition, Rakta – Jivan (Live), Mansa – covering, Meda – lubricate, Asthi – framework, Majja- fill up and Shukra- reproduction.
Atma (Soul), Mind and senses form the psychological part of the body. According to Ayurveda, the Mind has three stages – Satva (Pure state), Raja (Active state) and Tama (Dull state).
Satva is the healthy state of mind and Raja and Tama is the unhealthy stage. Raja forms the hyperactive mind and Tama forms the Hypoactive state of mind.
All these three states of mind changes in a cyclical way from one state to another. For example in the morning after awakening from sound sleep, mind is cool and calm, this is the Satva state. This is the energetic stage of mind.
Then it changes into raja stage, it is the active stage. All thought process goes on this stage.
But when the mental activity becomes hyperactive then it leads to unhealthy state leads anxiety, sleep disturbance, and memory loss. It is unhealthy stage of mind.
After that tama state comes when the mind becomes exhausted and need rest. And mind wants to go to sleep to rejuvenate its energy. This way the cycle of a different state of mind. goes on.
When the state of hypoactive of mind comes, it leads to an unhealthy state that leads to depression. It is unhealthy stage of mind.
To be healthy one has to be physically as well as mentally fit.
Tristambha the tri pillar of health-
a) Ahar (Food)
b) Nidra (Sleep)
c) Brahmacharya