The Importance of Sleep in Humans and Animals

Why do we sleep Pythons bats and giant armadillos are among the longest sleepers at over 18 hours a day Human babies need 16 hours and most of us probably feel we need around eight hours sleep to function well Professor Jerry Siegel from the University of California Los Angeles conducted a study of the sleep times of a broad range of animals and found that they vary widely Some like migrating birds can survive long periods without sleeping at all He believes that shows sleep evolved to conserve energy Jerry Siegel Its animals that are needlessly active that will not survive but animals that are most efficient and use their waking time to do vital functions and are otherwise asleep that will survive Sleep helps make best use of limited resources In humans when were awake our brain accounts for 20 of the energy we use when just sitting around Sleeping also makes us less likely to get injured and less likely to be detected by predators When were awake our brain accounts for 20 of the energy we use when just sitting around Choose the alternative which contains a verb that is followed by the same underlined preposition Suggested time for this question 0300 She looks her mother They have the same eyes She is looking her watch She cant find it Look Someone may be following you Look me when I talk to you She always looks her nephew She is a good aunt