Scientists reveal how sleep protects brain cells, manages metabolic damage, and may help explain links to Alzheimer’s disease ...

While sleep is a crucial component of survival for all living organisms, some animals take the concept of sleep to an extreme level. Ranging from tree-dwelling animals to nocturnal predators, the long ...

IT IS HARD to overstate the importance of sleep. Regular hours of rest offer organisms of all sizes a chance to consolidate memories, repair cells and boost the health of their immune systems. But the ...