clinicaltrials.gov Identifier: NCT00356213.

No abstract

In accordance with animal data, results indicate that men are more sensitive than women to the acute anorexigenic effect of central nervous insulin signaling, whereas insulin's beneficial effect on hippocampus-dependent memory functions is more pronounced in women. Our findings provide support for the notion of a fundamental gender difference in central nervous insulin signaling that pertains to the regulation of energy homeostasis and memory functions.

In contrast to our expectation, short-term sleep loss neither increased food intake nor affected concentrations of the hunger-regulating hormones leptin and ghrelin. However, the observed decrease in daytime physical activity may point to another potentially important behavioral mechanism for the health-impairing influence of sleep loss.

No abstract