Life Expectancy

A portion of my commute to and from work is on a toll road, at a rate of 300yen for 5km. Last night as I drove through the express card lane I noticed that the elderly booth attendant to the left was jogging in place while he waited for cars to use his lane. I'd like to think that this mentality is one of the reasons why the average Life Expectancy here is 4 years more than America.