在今天，我们越来越感觉到老年人比10年前更活跃，越来越多的老年人参加了健身运动。科学家指出；“自1970年以来，在发达国家，人的平均寿命每四年差不多要增长1岁。尽管医学研究取得了进展，卫生和居住条件得到了改善，但从人类自身所处的环境来看，现在还无法解释人的平均寿 Today, we feel more and more seniors are more active than 10 years ago. More and more seniors have taken part in fitness activities. Scientists point out that "in developed countries, the average life expectancy of people has risen by almost one year every four years since 1970. Despite progress made in medical research and improved sanitation and living conditions, in the context of humankind’s own existence Look, it is impossible to explain the average life of people