Articles - 'a', 'an' and 'the'


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New research shows that people who walk more slowly at 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. scientists said walking speed could help doctors understand more about 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 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."

researchers conducted study and looked at test data of 904 people. 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. researchers used data on intelligence of participants. They looked at how quickly people could calculate things and how good their memory was. They also did tests on participants at different walking speeds. The scientists asked participants to say the alphabet while walking at normal speed and fast speed. They scanned the participants' brains and found that people who walked more slowly showed less brain activity while saying alphabet

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