1. Feeling 13 years younger than your actual age. A survey of 500 older people aged 70 or older showed that feeling 13 years younger than their actual age is an important factor in longevity. University of Michigan psychology professor Jacqui? Smith said, “Feeling young and healthy enhances people’s optimism and confidence in overcoming difficulties, which in turn helps to reduce stress, strengthen the immune system and ultimately reduce the risk of disease.” 2, keep up with fashion. A U.S. survey shows that many centenarians email, search for lost friends via Google, and even date online. Researchers point out that the latest technology not only helps the elderly stay intellectually active, but also helps enhance social skills. 3, menopause begins after age 52. Several studies have shown that a natural delay in menopause means an increase in life expectancy. According to Jane, a professor of obstetrics and gynecology at Yale University School of Medicine. Mienkin, menopause delayed will make women’s risk of heart disease greatly reduced. 4, daily calorie intake is low. U.S. researchers found that the daily caloric intake is limited to 1400 kcal to 2000 kcal people, heart function and 15 years younger than they are the same. 5, pulse 15 seconds 15 times. The vast majority of people have a resting heart rate of 60-100 beats per minute, and the fewer the number of heartbeats, the healthier the body. The director of the Cleveland Clinic’s Women’s Cardiovascular Center, Leslie K. Dr. Cao said that a slower heart rate means that your heart does not have to work too hard to complete the task of delivering blood. 6, not snoring. A study over 18 years found that normal people live three times longer than people with heavy sleep apnea syndrome. 7, the abdomen flattened after menopause. According to a study by the American Institute on Aging, women with overly full waists face a 20 percent higher risk of death than the norm. 8, high levels of vitamin D in the blood. Colorado State University Denver School of Medicine assistant professor of surgery Adit? Dr. Kind said that the level of vitamin D per milliliter of blood should be maintained at least 30 micrograms or more. Vitamin D can not only reduce osteoporosis, but also reduce the risk of cancer, heart disease and infectious diseases. 9, cheerful personality. A recent Swedish study shows that cheerful people have a 50% lower probability of dementia, but also less likely to be affected by external stress. This is related to the low levels of cortisol in their brains. There are several measures to reduce cortisol levels, such as regular meditation, drink black tea, nap. 10, running 40 minutes a day. California scientists in the United States in the runners and not runners for 21 years after the follow-up survey, concluded: middle-aged people run 40 minutes a day to live longer, cognitive function is also stronger.