Title: Study: Humans Sleep Less, Better Than Other Animals

Content: <div id='article-page'><div id='article-content' data-media-url='//news-app-staging.s3.amazonaws.com' data-base-url='//news-app-staging.herokuapp.com' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/686/sleep_audio.m4a' data-capture-url='//staging.analytics.lingraphica.com/events/capture_news' data-article-title='Study: Humans Sleep Less, Better Than Other Animals' data-article-id='1069'><script src='//news-app-staging.herokuapp.com/javascripts/getscripts.js'></script><link rel='stylesheet' href='//news-app-staging.herokuapp.com/stylesheets/article.css' type='text/css' /><div class='article'><p><span data-start-time='0' data-end-time='11146'>Humans need less sleep than other mammals, yet their slumber is more efficient, said researchers at Duke University in North Carolina.</span> <span data-start-time='11146' data-end-time='18583'>In their study, the scientists researched sleep patterns of hundreds of animals. </span> <span data-start-time='18583' data-end-time='26167'>They discovered humans sleep for shorter periods of time compared to other animals.</span> <span data-start-time='26167' data-end-time='32500'>The study also concluded that a human&rsquo;s sleep is higher quality. </span> <span data-start-time='32500' data-end-time='43292'>A deeper stage of sleep, called rapid eye movement sleep, or REM, makes up 25 percent of a human&rsquo;s sleep. </span> <span data-start-time='43292' data-end-time='51063'>In primates like lemurs or monkeys, REM sleep does not reach the five percent mark.</span> </p><p><span data-start-time='51063' data-end-time='60063'>&ldquo;Humans are unique in having shorter, higher quality sleep,&rdquo; said David Samson, a study co-author.</span> <span data-start-time='60063' data-end-time='68542'>Samson&rsquo;s research team found that humans can prosper with an average of seven hours of sleep a day. </span> <span data-start-time='68542' data-end-time='75188'>Other primates need as many as 14 to 17 hours of sleep.</span> <span data-start-time='75188' data-end-time='82313'>Samson said human sleep habits evolved during prehistoric times. </span> <span data-start-time='82313' data-end-time='88875'>Human ancestors moved from sleeping in trees to sleeping on the ground. </span> <span data-start-time='88875' data-end-time='95521'>Better sleeping habits resulted in better sleep in a shorter amount of time.</span> </p></div><div class='control-buttons-sticky' style='display:none;'><div class='control-buttons'><button title='Back' class='back' disabled='disabled'></button><button title='Play' class='play' disabled='disabled'></button><button title='Pause' class='pause' style='display:none;'></button><button title='Forward' class='forward' disabled='disabled'></button><button class='finished-reading' style='display:none;'>Done</button></div></div></div><div id='article-media'><div id='media-image'><img src='https://news-app-production.s3.amazonaws.com/articles/686/sleep_image.jpg'/></div></div><div id='question-content' style='display:none;'><div class='vocabulary_question question-container' data-question-id=4783 data-hint-location='0' style='display:none;'><div class='question' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/686/what_does_slumber_mean.m4a'>What does slumber mean?</div><div class='choices' data-correct-choice='sleep'><div class='choice' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/686/an_illegal_activity.m4a'><span>an illegal activity</span></div><div class='choice' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/686/an_area_of_land.m4a'><span>an area of land</span></div><div class='choice' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/686/the_main_idea.m4a'><span>the main idea</span></div><div class='choice' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/686/sleep.m4a'><span>sleep</span></div></div></div><div class='multiple_choice_question question-container' data-question-id=4784 data-hint-location='88875' style='display:none;'><div class='question' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/686/what_did_scientist_learn_about_human_sleep.m4a'>What did scientist learn about human sleep?</div><div class='choices' data-correct-choice='short and high quality'><div class='choice' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/686/not_very_good.m4a'><span>not very good</span></div><div class='choice' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/686/short_and_high_quality.m4a'><span>short and high quality</span></div><div class='choice' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/686/unnecessary.m4a'><span>unnecessary</span></div><div class='choice' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/686/very_long.m4a'><span>very long</span></div></div></div><div class='sentence_completion_question question-container' data-question-id=4785 data-hint-location='32500' style='display:none;'><div class='question' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/686/a_deeper_stage_of_sleep_called__blank__makes_up_25_percent_of_a_human_sleep.m4a'>A deeper stage of sleep, called <span class='blank'>REM</span>, makes up 25 percent of a human sleep.</div><div class='choices' data-correct-choice='REM'><div class='choice' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/686/cpr.m4a'><span>CPR</span></div><div class='choice' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/686/hibernation.m4a'><span>hibernation</span></div><div class='choice' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/686/snooze.m4a'><span>snooze</span></div><div class='choice' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/686/rem.m4a'><span>REM</span></div></div></div><div class='question-buttons'><button class='skip-button'></button><button class='hint-button'></button><button class='speak-button'></button></div></div></div>

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Humans need less sleep than other mammals, yet their slumber is more efficient, said researchers at Duke University in North Carolina. In their study, the scientists researched sleep patterns of hundreds of animals. They discovered humans sleep for shorter periods of time compared to other animals. The study also concluded that a human’s sleep is higher quality. A deeper stage of sleep, called rapid eye movement sleep, or REM, makes up 25 percent of a human’s sleep. In primates like lemurs or monkeys, REM sleep does not reach the five percent mark.

“Humans are unique in having shorter, higher quality sleep,” said David Samson, a study co-author. Samson’s research team found that humans can prosper with an average of seven hours of sleep a day. Other primates need as many as 14 to 17 hours of sleep. Samson said human sleep habits evolved during prehistoric times. Human ancestors moved from sleeping in trees to sleeping on the ground. Better sleeping habits resulted in better sleep in a shorter amount of time.

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