People who walk at the age of 45 may age . They could become and mentally older. Walking could help doctors understand more about problems older people have. Doctors know that older who walk slowly are more likely to have health . This may be the same for younger people. A said: "Doctors know that slow in their 70s and 80s tend to die sooner than fast walkers their same ."
Researchers looked at the records of 904 people. Some went back to when people were three years . The researchers looked at how good the people's was and their intelligence. Researchers did on the people. The people had to say the while walking at a and fast . The people who walked more slowly showed brain activity in brain scans saying the alphabet.