List the two key hormones that are responsible for increasing and decreasing hunger and explain the role of each. Gherlin – hormone produced in the stomach that increases hunger. Leptin – hormone produced by fat cells that decrease hunger. List two examples of Environmental external forces that can influence eating habits and comment on your personal experience with each of them. Economics, Lifestyle, Cultural/Religious Beliefs, Local Environment 1. is the internal drive to find and eat food. It is often experienced as a negative sensation. 2. is the external drive that encourages us to find and eat food. Related to pleasant sensations associated with food. 1. Hunger 2. Appetite Fats are considered both: Micronutrients and Organic Macronutrients and Organic Macronutrients and Inorganic Micronutrients and Inorganic Define organic: Organic - a compound that contains carbon and hydrogen