This document contains 5 lessons on health education. Lesson 1 discusses environmental health, health and sanitation, and occupational diseases. It explains the causes of ailments to the human body and the main reasons why the body needs food. Lesson 2 covers air pollution, describing the different air pollutants and their effects on the body. Lesson 3 is about water pollution, the kinds of water pollution, and how to conserve water. Lesson 4 discusses noise pollution and its health effects. It also provides ways to protect ears from noise. Lesson 5 introduces the topic of land pollution and waste management problems.