Why is it that the vast majority of long-lived seniors are people who have not done much physical activity in their lives?

This view makes the definition of physical activity absolute. Physical activity actually includes all kinds of sports. Walking is a sport, square dancing is a sport, playing basketball is a sport, farming by a farmer's uncle is a sport, and so are migrant workers who work on construction sites. Workers' labor is more sustainable and healthful than simple physical exercise.

Longevity is determined by many factors, not exclusively by physical exercise. Physical activity or exercise is only one factor that affects human longevity. There are many factors that affect longevity, but that doesn't mean you can live longer at one point.

Healthy lifestyle: have a regular life, go to bed early and get up early, don't stay up late; have a hobby that can regulate your body and mind, such as reading, playing chess, singing, practicing qigong, listening to music, raising flowers and plants, watching fish and birds, etc.; no bad habits such as smoking, alcoholism, whoring and gambling. Healthy diet: moderate diet, balanced diet, mainly light, less high salt, high fat, high sugar and spicy food, more fruits and vegetables, regular diet, moderate hunger and satiety, chew slowly, do not eat too much. Appropriate exercise: keep a certain amount of exercise every day, do not limit yourself to the form of exercise. Fitness, dancing, tai chi, cycling, walking, brisk walking, climbing, and even labor can achieve the purpose of exercise. Positive attitude towards life: optimistic and calm, more smiles and less frustration.

Good interpersonal relationships: respect for the elderly, love for the young, love for couples, respect for each other, do not quarrel over trivialities, peace is the most valuable. This is called family and all is well. We should also treat our friends, colleagues and neighbors sincerely and be more helpful and kind to others. In conclusion, life expectancy is related to many factors, such as genetic factors, intensity of exercise, level of medical treatment, level of nutrition, living conditions, living environment, and so on. Exercise is one of them. It can be said that moderate, regular exercise and a healthy diet is the best choice for a long and healthy life.