Stress and lack of sleep go hand in hand. Whatever may be the cause – change of job schedules, heavy workload, family problems – sleep gets hampered under such conditions and in an indirect way you could say that lack of sleep can and indeed does cause hair loss. - See more at: http://www.belgraviacentre.com/blog/lack-of-sleep-can-cause-hair-loss-082/#sthash.NWhhn2NV.dpuf