New research shows that people who walk more slowly at the age of 45 may be more likely to age faster. Scientists said that slower walkers who are in their forties and fifties could get older more quickly than faster walkers. This ageing could be both physically and mentally. The scientists said walking speed could help doctors understand more about the age-related health problems that people have. Doctors already knew that older people who walked slowly were more likely to have health problems. They wanted to find out if this was the same for younger people. Researcher Terrie Moffitt said: "Doctors know that slow walkers in their 70s and 80s tend to die sooner than fast walkers their same age."

新的研究表明，45岁时走得慢的人可能更容易变老。科学家说，40多岁和50多岁走路慢的人比走路快的人衰老得更快。这种衰老可能是身体上的，也可能是精神上的。科学家说，行走速度可以帮助医生了解更多与年龄有关的健康问题。医生们已经知道，行走缓慢的老年人更容易出现健康问题。他们想知道年轻人是否也会这样。研究人员特里•莫菲特说:“医生们都知道，70多岁和80多岁走路慢的人比同龄走路快的人死得早。”

The researchers conducted a study and looked at test data of 904 people. The people in the tests had medical records of health checks from throughout their lives. For some participants, these records went back to when they were three years old. The researchers used data on the intelligence of the participants. They looked at how quickly people could calculate things and how good their memory was. They also did tests on the participants at different walking speeds. The scientists asked the participants to say the alphabet while walking at a normal speed and fast speed. They scanned the participants' brains and found that people who walked more slowly showed less brain activity while saying the alphabet.

研究人员进行了一项研究，并查看了904人的测试数据。参加测试的人一生中都有健康检查的医疗记录。对于一些参与者来说，这些记录可以追溯到他们三岁的时候。研究人员使用了参与者的智力数据。他们研究了人们计算东西的速度和记忆力。他们还对参与者进行了不同行走速度的测试。科学家要求参与者在以正常速度和快速速度行走时念字母表。他们扫描了参与者的大脑，发现走得慢的人在说字母表时大脑活动更少。