Ayurveda, the most ancient Indian medicinal science, the origin of which can be traced back to more than 5000 years. The main concept of Ayurveda is that it personalizes the healing process. According to Ayurveda the human body is composed of four basics

• Dosha
• Dhatu
• Mala
• Agni

These are called the Mool Siddhant or the basic fundamentals of Ayurveda.

Dosha

The three vital principles of doshas are vata, pitta and kapha, which together regulate and control the catabolic and anabolic metabolism. The main function of the three doshas is to carry the byproduct of digested foods throughout the body, which helps in building up the body tissues. Any malfunction in these doshas causes disease.

Dhatu

Dhatu can be defined, as one, which supports the body. There are seven tissue systems in the body. They are as follows:
• Rasa (Plasma)
• Rakta (Blood)
• Mamsa (Muscle)
• Meda (Fat tissues)
• Asthi (Bone)
• Majja (Marrow)
• Shukra (Semen)

Dhatus only provide the basic nutrition to the body. And it helps in the growth and structure of mind. It is a chain system where each dhatu is developed or transformed out of the previous tissue layer, starting with the first dhatu i.e. plasma (rasa). So it is important that the first tissue, plasma should be healthy if it is not it will affect the other dhatus or tissues also. The main tissue Rasa is derived from food and is composed of vata, pitta and kapha molecules. It supplies nourishment to all the tissues. It does not contain cells. Dhatus mainly provide the nourishment to all the tissues. It contains no cells.

Mala

Mala means waste products or dirty. It is third in the trinity of the body i.e. doshas and dhatu. There are three main types of malas, e.g. stool, urine and sweat. Malas are mainly the waste products of the body so their proper excretion from the body is essential to maintain the proper health of the individual. There are mainly two aspect of mala i.e. mala and kitta. Mala is about waste products of the body whereas kitta is all about the waste products of dhatus.

Agni

All kinds of metabolic and digestive activity of the body takes place with the help of the biological fire of the body called Agni. Agni can be termed as the various enzymes present in the elementary canal, liver and the tissue cells. That's why Ayurveda is called the "science of life" or longevity,