第十八章

Agliata, Kate.“Characteristics of Nocturnal Animals.”eHow. www.ehow.com/info_8742878_characteristics-nocturnal-animals.html

Gonzalez, Robert T.“Why is it so impossible to get out of bed in the morning?”io9. http：//io9.com/why-is-it-so-impossible-to-get-out-of-bed-in-the-morning-1348209324

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Mercola, MD, Joseph.“Why You Should Never Sleep with TV or Dim Lights On……”http：//articles. mercola.com/sites/articles/archive/2011/02/19/why-you-should-never-sleep-with-tv-or-dim-lights-on.aspx

Rettner, Rachel.“Avoiding Depression：Sleeping in Dark Room May Help.”Live Science. www.livescience.com/9004-avoiding-depression-sleeping-dark-room.html?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+livescience%2Fhealthscitech+%28 LiveScience.com+Health+SciTech%29

Williams, Ray B.“Early Risers Are Happier, Healthier, and More Productive Than Night Owls.”Psychology Today. www.psychologytoday.com/blog/wired-success/201208/early-risers-are-happier-healthier-and-more-productive-night-owls

Marks, MD, Tracey.“How to Become a Morning Person.”Huffington Post. www.huffingtonpost.com/tracey-marks-md/morning-person_b_864377.html

Goudreau, Jenna.“10 Advantages of Waking Up Early.”Forbes Woman. http：//shine.yahoo.com/healthy-living/10-advantages-waking-early-195900205.html

Babauta, Leo.“The Most Successful Techniques for Rising Early.”Zen Habits. http：//zenhabits.net/early/