In this post, we will learn about the remaining verses of chapter 1, desire for long life, of Ashtanga Hridayam, Sutrasthana under Bachelor of Ayurveda, Medicine and Surgery, 1st year . Dravya bhedah-(Type of food substances) Shamana – Food that brings down the increased Dosha to normalcy Kopana – Food that increases the lowered Dosha to normalcy Swasthahita - Food that maintains the normalcy of Tridosha and health. Types of Potency (Veerya) Ushna veerya (Hot potency) -Some food items are hot in nature. For example pepper Sheeta veerya (cold potency) - Some food items are cold in nature. For example milk. These are the two types of potencies. Generally, substances that have Astringent, bitter and sweet tastes are coolant in nature and Sour, salt and pungent tastes are hot in nature. Vipaka Vipaka refers to conversion of taste after the initial phase of digestion. Madhura Vipaka (sweet) – Generally, Sweet and salt tastes underg...