This document provides an overview of Ayurvedic doshas (Vata, Pitta, Kapha) based on lessons from the Ashtanga Hridaya. It describes the elemental composition and defining qualities of each dosha. Vata is comprised of space and air and has qualities of dryness, lightness, coldness, roughness, subtlety and movement. Pitta contains fire and water and is slightly oily, hot, sharp, light, foul-smelling, slippery and liquid. Kapha is made of earth and water, giving it qualities of oiliness, coldness, heaviness, mildness, smoothness, sliminess and stability. Understanding the doshas provides insight into health, disease