An inactive state resembling deep sleep in which certain animals living in cold climates pass the winter. In hibernation, the body temperature is lowered and breathing and heart rates slow down. Hibernation protects the animal from cold and reduces the need for food during the season when food is scarce. Compare estivation.
Does Dreaming Indicate a Good Nightâs Sleep? Dreams are typically indicative of a good nightâs sleep, demonstrating that you have passed through the light sleeping phase (NREM) and entered into a deep sleep (REM).
This hypothesis defines dreaming as a way to act out unconscious desires in a safe or âunrealâ setting, presumably because to do so in reality would be unacceptable or even detrimental. But even in the 21st century we still are not sure why we dream. The only way to study dreams is to ask the dreamer. However, one thing we know for sure is that dreaming is something that the vast majority of humans do every night of their lives. In 1953 Eugene Aserinsky, a