You all missed the real reason. Holding the hands behind the back allows walking and standing with a slight hunch forward. This relieves the nerve compression of sciatica, a common ailment of older people, especially men. It is possible that many who do this don't even fully recognize why they do it, but just that it makes them feel better.
FLASH Application. Online Application for an Insurance License. The California Department of Insurance (CDI) requires California resident applicants to first pass the qualifying license examination prior to submitting their license application.
Wentworth Miller is a silver fox as he sports a new salt and pepper buzzcut on the set of The Flash in Vancouver. He melted hearts as the tattooed Michael Scofield in Prison Break, and now Wentworth Miller is still showing he has sex appeal even with a salt and pepper haircut.