This document discusses Habit 7 of sharpening the saw and providing examples of how to take care of one's body, brain, heart, and soul. It recommends being healthy at all times by exercising, eating a balanced diet of fruits, vegetables, and milk, avoiding drugs, and drinking water. It also suggests getting enough sleep to care for the body, continuous learning to care for the brain, spending time with family and friends to care for the heart, and helping others to care for the soul.