People who walk at the of 45 may get old quickly. They could get physically and older. Doctors know that people who walk slowly are more to have health . Slow walkers in 70s and 80s often die than fast walkers. This may be the for people in their 40s.
looked at the records of 904 . The looked at the people's and intelligence. They did on the people. The people had to say the while walking. The people walked more slowly showed less activity saying the alphabet.
