In Siddha medicine, the human body is governed by three vital energies called Thodams
(Doshas) – Vatham, Pitham, and Kapham. Among them, Vatham represents the air andVatham is the life force responsible for:
Movement of muscles and joints
Nerve functions and brain activity
Breathing, heartbeat, and speech
Digestion and elimination
Sensory balance and mental clarity
It is light, dry, cold, mobile, and subtle in nature.