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.
In his same comment, he clarifies that there are ways to make sure that Ezra Miller and Grant Gustin BOTH get a shot to run fast as The Flash, stating: The important thing to remember is just because Grant Gustin plays the part of Barry Allen doesnât mean Ezra Miller canât also play Barry Allen.