Researchers are seeking ways to help the body clock reset itself in response to a trans-Atlantic flight, for example, or a night-time workshift.

BBC: Body clock 'set before birth'

If so, that will be at least in part a by-product of the Russians' response to such unilateral U.S. restraint, exercised in the hope that it would help "reset" relations with Moscow.

CENTERFORSECURITYPOLICY: Obama's 'Anti-missilephobia'