Researchers say human life expectancy has not yet peaked

scientists once thought that Jeanne Kalman, a 122-year-old French woman, represented the limits of human life. After studying the health of thousands of Italian centenarians, U.S. researchers predict that as a species, human life expectancy has not yet peaked and will gradually increase.
researchers at the University of California, Berkeley, analyzed data on all 3,836 centenarians living in Italy and found that the trend toward deteriorating health and increased risk of death slowed when they reached the age of 105. "As people age, people's health deteriorates and their risk of death increases faster, but when they reach an extreme age, they don't get worse," said Kenneth Wackerty, a professor of statistics at the University of California, Berkeley and one of the study participants. In
researchers looked at mortality rates among older people born in the same age and found a slight decrease over time. This means that those born later will live slightly longer than those born before. "The slow but significant (health) improvement seen in people over 105 gives the hope that the fixed period of human life is not yet visible," Wackertay said. The
related papers are published
the American Journal of Science and 20th. (Source: Xinhua News Agency, Yuan Yuan)