I had a "sit-down" job for 26 years at the RR.

I had the ass-developement to withstand all

that sitting and "getting-up" all the time.

After I retired from railroad work and started

working in my garden many hours a day, I

noticed my ass had "shrunk" and I had to

create a few new holes in my belt to keep

my pants up. My generations of kin going back

to the Civil War were farmers. No old pictures

of people that were "fat".

Don't just sit there. Really.

http://www.latimes.com/health/la-he-dont-sit-20130525,0,3673157.story

Why is there so much fuss being made about sitting?

Widespread mechanization and automation have affected virtually every sector of the Canadian economy. From offices to industry, new technologies have changed the way people do their jobs. Machines are now doing work previously done manually. More and more people work in a sitting position to operate these machines.

Sitting jobs require less muscular effort, but that does not exempt people from the injury risks usually associated with more physically demanding tasks. For example, clerks, electronic assembly-line employees, and data entry operators who work in a sitting position also suffer back pain, muscle tenderness and aches. In fact, reports of varicose veins, stiff necks, and numbness in the legs are more common among seated employees than among those doing heavier tasks.

 http://www.ccohs.ca/oshanswers/ergonomics/sitting/sitting_overview.html