A new study has revealed that poor-quality sleep marked by frequent awakenings can speed cancer growth increase tumor aggressiveness and dampen the immune system''s ability to control or eradicate early cancers. 'Fragmented sleep changes how the immune system deals with cancer in ways that make the disease more aggressive' study director David Gozal MD chairman of pediatrics at the University of Chicago Comer Children''s Hospital said. The researcher said that toll-like receptor 4 a biological messenger helps control activation of the innate immune system. It appears to be a lynchpin for the cancer-promoting effects of sleep loss.The researchers used mice
