According to the United States “Oprah network” reported, the University of Pittsburgh, a new study found that walking faster and slower can predict the length of life. The study involved 35,000 people over the age of 65 and found that for every 0.1 m/s increase in walking speed, the risk of death decreases by 12 percent. For example, among older women aged 75-84, those who walked the fastest (speed greater than or equal to 1.4 m/s) had a 92% chance of living another 10 years, while those who walked the slowest (speed less than or equal to 0.4 m/s) had only a 35% chance of living another 10 years. Stephanie Studensky, the leader of the new study, said that the elderly who walked the slowest (less than 0.4 meters per second) had only a 35% chance of living another 10 years. Dr. Studensky said that walking speed directly reflects a person’s vitality, because walking involves many organs and systems in the body, such as the heart, lungs, muscles, joints, bones and brain. She believes that walking speed will be one of the important bases for doctors to determine a patient’s fitness during the diagnostic process, and that a slow speed means that the patient may have more serious health problems and it is necessary to take steps to improve health factors such as blood pressure, diet, and exercise. Dr. Studensky suggests that seniors can self-measure their walking speed once a year. You can draw a 4-meter line on the floor, walk from the starting point to the end point at a normal speed, record the time taken, and divide it by four to find the walking speed. Seniors can compare their self-measured walking speed with the previous year’s data and should see a doctor if they find excessive changes.