1. Italian scientists have found that if you eat at least one serving of raw vegetables every day, you can prolong your life by two years.
2. Scientists at the University of Alabama found that if the body mass index (height and body mass index) is always between 25 and 35, people's life expectancy will be shortened by three years. So if you are overweight, you must exercise. Studies show that people who are used to sitting should exercise at least three times a week.
Scientists at the University of Los Malinda in the United States tracked the living habits of a group of long-lived people and found that people who eat nuts five times a week can live nearly three years longer.
Scientists in Australia have studied a group of 70-year-olds and found that the life expectancy of those who have a wide range of friends has also increased accordingly, with an average increase of 7 years.
Scientists at Yale University in the United States have found that elderly people who are optimistic about the aging process live seven years longer than those who worry about the deterioration of their health all day.