Exercise for health: Life lies in exercise. People are diligent in activities in their old age, but they should do what they can and persevere. The form is not limited. According to your own situation, you can make your blood comfortable, broaden your mind, nourish your mood, keep fit and prevent problems before they happen. Sit-in rest: activity rest. God is the foundation of life. In tranquility, people can achieve emptiness, self-existence, essence and qi, enhance viscera function and immunity, and improve physical and mental health. Eat less and replenish more: when people get old, the functions of various organs will decline to varying degrees. Diet regulation is very important. It should be light and soft, carefully matched, nutritious, moist and fuzzy, and eat more meals to maintain balance.