Man flu ... no longer a myth.
It has been scorned by women as a sign of male weakness for generations - but ''man flu'' might not be a myth after all as men and women have different brains, new research has claimed.
Neuroscientist Amanda Ellison, of Britain's Durham University, has reached the conclusion that men really do suffer more with coughs and colds as they have more temperature receptors in the brain.
Dr Ellison said the difference lies in the area of the brain which balances a variety of bodily mechanisms, including temperature.
Men and women start out as equals in dealing with colds because the area, known as the preoptic nucleus, is the same size in children.
But when boys hit puberty testosterone starts to act on the area, which is in the brain's hypothalamus and attached to a hormone gland, making it larger.