This document discusses lifestyle diseases and stroke. It defines hypertension as blood pressure higher than 120/80 mmHg, which is often called the "silent killer" as it causes no symptoms for years. Stroke occurs when there is inadequate blood flow to the brain, damaging tissue. Symptoms of stroke include face drooping, arm/leg weakness, paralysis, difficulty walking, irregular breathing, and loss of consciousness. Risk factors for stroke include hypertension, smoking, excess alcohol, obesity, lack of exercise, and poor diet. The document recommends a healthy diet, limiting alcohol, getting enough sleep, regular exercise, quitting smoking, managing stress, and monitoring blood pressure to prevent stroke.