In our previous studies, there was up-regulation of CRF in the PVN and NPY in the ARC of stressor-exposed LWS chicks, and we postulated that CRF may override the orexigenic effect of NPY upon exposure to stressors and exacerbate anorexia in the LWS chicks at a later age [4,5]. Here, NPY is linked to Anorexia.