#$%^&*AU2010200224B220120920.pdf#####ABSTRACT The present invention relates to compositions for improving daytime vigilance and/or cognitive function, for improving a metabolic condition, for improving anabolism in a catabolic condition and for improving and/or reconstituting immune function in a subject, the composition comprising an effective amount of a GRF compound or analog thereof in association with a pharmaceutically acceptable carrier, excipient or diluent.