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New research that people who more slowly at the age of 45 may more likely to age faster. Scientists said that slower walkers who are in their forties and fifties could older more quickly than faster walkers. This ageing could both physically and mentally. The scientists said walking speed could help doctors more about the age-related health problems that people . Doctors already knew that older people who walked slowly were more likely to health problems. They wanted to 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 sooner than fast walkers their same age."

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