Alterations in sleeping patterns have been shown to affect the body’s immune function, hormone secretion, and physical and mental stamina. The hair is very sensitive to changes within the body, and hairloss is nearly always the consequence of an internal disturbance. “Stress can indeed cause hair loss, particularly diffuse hair loss and telogen effluvium,” says Leonora Doclis, senior trichologist at the Belgravia Centre. During such times and along with other proven treatments, specific hair growth boosters can provide hair with much needed nutrients and support for optimum hair health and growth . - See more at: http://www.belgraviacentre.com/blog/lack-of-sleep-can-cause-hair-loss-082/#sthash.NWhhn2NV.dpuf