WHAT IS SLEEP? – DEFINITION

Last Updated on March 15th, 2018 How should we define sleep? The Oxford English Dictionary defines sleep as: “a condition of body and mind which typically recurs for several hours every night, in which the nervous system is inactive, the eyes closed, the postural muscles relaxed, and consciousness practically suspended”. Merriam-Webster prefers the more pithy … Continue reading WHAT IS SLEEP? – DEFINITION