The Duke University Medical Center found that a brisk 30-minute walk or jog around a track three times a week was just as effective as antidepressant medication in relieving the symptoms of major depression in middle-aged and elderly people.
A study published in the Archives of Internal Medicine last year showed that older women who walked regularly were less likely to develop memory loss and other declines in mental function than women who were less active. Those who walked 18 miles or more per week fared best.
The 1995 National Personal Transportation Survey (NPTS) found that approximately 40% of all car trips are less than 2 miles in length — which represents a 10-minute bike ride or less than 40-minutes of walking. Also, since “cold starts” create high levels of emissions, shorter car trips are more polluting on a per-mile basis than longer trips.
The cost of operating a car for one year is approximately $5,170. The cost of operating a bicycle for a year is only $120. Walking is free!
A study of Amish adults by Novartis Nutrition found that men take an average of 18,425 steps a day and women take 14,196. Compare that to about 4,000 steps for the average American adult and it is easy to see why only 4% of Amish adults are obese, versus 31% of the general population.