The novel neuropeptides hypocretin and orexin, located recently on the lateral hypothalamic cells, has been linked to both feeding and sleeping/waking cycles. Recent studies have found an association between defects in hypocretin/orexin and narcolepsy.
S. Wei. Comput. Mater. Sci., 30 (3–4):
337 - 348(2004)Theory, modeling and simulation of materials for advanced technologies: Proceedings of the International Conference on Materials for Advanced Technologies (ICMAT 2003) and IUMRS International Conference in Asia (IUMRS-ICA 2003).