Just as daily events are timed by living creatures through circadian rhythms, so seasonal events are timed through an internal calendar that signals birds to return to nesting grounds, salmon to
Just as daily events are timed by living creatures through circadian rhythms, so seasonal events are timed through an internal calendarthat signals birds to return to nesting grounds, salmon to
Why do we need sleep? What is sleep? What happens when we don't get enough? This Very Short Introduction addresses the biological and psychological aspects of sleep, providing a basic understanding of
This issue of Progress in Brain Research reviews current knowledge and understanding, provides a starting point for researchers and practitioners entering the field, and builds a platform for further
