This document discusses three bad habits: chewing betel leaves and betel nuts, smoking, and drinking alcohol. It notes that chewing betel leaves and betel nuts is common in parts of India and can cause health issues like headaches, tooth staining, and increased cancer risk. Smoking cigarettes cuts life expectancy and can cause lung cancer as well as other cancers. Drinking alcohol destroys brain cells and health, causes people to spend excessively on it and behave badly when drunk, and can lead to accidents if drinking and driving. The document encourages avoiding these habits for good health.