This document outlines the objectives and content of a lesson on the importance of healthy drinking for adults. The key points are: - The recommended daily fluid intake is 1.6 liters for women and 2.0 liters for men. Not drinking enough can impact health. - Effects of dehydration include issues with blood circulation, digestion, brain function and more. Those at risk include elderly adults. - Practitioners should encourage drinking by providing easy access to water and drinks, using appropriate drinking tools, and offering fluids regularly, especially in hot weather.