copyright by Elena Litsova Photography via Getty Images
安らかな眠りほど、心を満たしてくれるものはない。「パワーナップ（気力回復のための昼寝）」であれ、夜にぐっすり眠る時間であれ、とにかく、眠らないことには力も出ない。
それは、科学的にも証明済みだ。ぐっすり眠れば、仕事も勉強もバリバリできるし、長生きする。ストレスだって解消できて、良いこと尽くめだ。逆に、十分な睡眠を取らなければ、健康に深刻な悪影響をもたらしかねない。
それでもまだ納得できないという方に、心地よい夢の世界へといざなってくれる画像と名言をご紹介しよう。では、よい休息のひとときを。
「睡眠は最高の瞑想だ」－ダライ・ラマ14世
「深く眠っていても魂は働いており、世界の役に立っている」－ヘラクレイトス（古代ギリシャの哲学者）
「言葉を紡ぐべき時間もあれば、眠るべき時間もある」－ホメーロス（古代ギリシャの吟遊詩人）
「人は、夢見ている時は天才だ」－黒澤明（映画監督）
「充実した一日を過ごせば、幸せに眠れる」－レオナルド・ダ・ヴィンチ
「真の静けさとは、心の休息だ。睡眠が身体に滋養を与えるように、静けさは精神に滋養を与え、元気を回復させる」－ウィリアム・ペン（フィラデルフィア市を建設した人物）
「健康に良いことはだいたい嫌われるものだが、人が唯一好むものがある。それは、心地よい夜の眠りだ」－E.W. ハウ（20世紀初頭の米小説家、新聞編集者）
[(English) 日本語版：遠藤康子/ガリレオ]
ハフィントンポスト日本版はFacebook ページでも情報発信しています。
ハフィントンポスト日本版はTwitterでも情報発信しています。@HuffPostJapan をフォロー
関連記事
Health Benefits Of Gratitude
Good For Teens' Mental Health (01 of10)
Grateful teens are happier, according to a study presented at one of the annual meetings of the American Psychological Association. \n\nResearchers also found that teens who are grateful -- defined in this study as having a positive outlook on life -- are more well-behaved at school and more hopeful than their less-grateful peers. They also got better grades, had less envy and more friends due to their optimism.\n\n\"More gratitude may be precisely what our society needs to raise a generation that is ready to make a difference in the world,\" said study researcher Giacomo Bono, Ph.D., a psychology professor at California State University. (credit:Shutterstock)
Boosts Well-Being(02 of10)
Being constantly mindful of all the things you have to be thankful for can boost your well-being, research suggests.\n\nIn a series of experiments detailed in a 2003 study in the Journal of Personality and Social Psychology, daily exercise practices and listing off all the things you are thankful for are linked with a brighter outlook on life and a greater sense of positivity. \n\n\"There do appear to exist benefits to regularly focusing on one\'s blessings,\" the researchers wrote in the study. \"The advantages are most pronounced when compared with a focus on hassles or complaints, yet are still apparent in comparison with simply reflecting the major events in one’s life, on ways in which one believes one is better off than comparison with others, or with a control group.\"\n (credit:Alamy)
Linked With Better Grades (03 of10)
Grateful high-schoolers have higher GPAs -- as well as better social integration and satisfaction with life -- than their non-grateful counterparts, according to a 2010 study in the Journal of Happiness Studies.\n\nResearchers also found that grateful teens were less depressed and envious. This could be a factor in why the teens got better grades since they were less distracted and lived healthier lives.\n\n\"When combined with previous research, a clearer picture is beginning to emerge about the benefits of gratitude in adolescents, and thus an important gap in the literature on gratitude and well-being is beginning to be filled,\" researchers wrote. (credit:Alamy)
Makes You A Better Friend To Others (04 of10)
According to a 2003 study in the the Journal of Personality and Social Psychology, gratitude could also boost pro-social behaviors, such as helping other people who have problems or lending emotional support to another person. \n\nThis explains why religious services include reflection days and why so many self-help groups such as AA (Alcoholics Anonymous) use grateful thinking practices. (credit:Alamy)
Helps You Sleep Better (05 of10)
Writing down what you\'re thankful for as you drift off to sleep can quiet the mind and help you get better ZZs, according to a study in the journal Applied Psychology: Health and Well-Being. \n\nSpecifically, researchers found that when people spent 15 minutes jotting down what they\'re grateful for in a journal before bedtime, they fell asleep faster and stayed asleep longer because they worried less, Psychology Today reported. Participants with neuromuscular disorders reported that they had more refreshing sleep in just 3 weeks.\n (credit:Shutterstock)
Strengthens Your Relationships(06 of10)
Being thankful for the little things your partner does could make your relationship stronger, according to a study in the journal Personal Relationships.\n\nThe Telegraph reported on the study, which showed that journaling about the thoughtful things your partner did was linked with a beneficial outcome on the relationship. The researchers found that gratitude for everyday kind gestures helps people become close to others who care about their well-being. \n\nThey claim, \"Gratitude may help to turn \'ordinary\' moments into opportunities for relationship growth, even in the context of already close, communal relations.’\' (credit:Shutterstock)
Benefits The Heart (07 of10)
A 1995 study in the American Journal of Cardiology showed that appreciation and positive emotions are linked with changes in heart rate variability. \n\n
[This] may be beneficial in the treatment of hypertension and in reducing the likelihood of sudden death in patients with congestive heart failure and coronary artery disease.(credit:Shutterstock)
Is Good For Team Morale (08 of10)
Athletes are less likely to burn out and more likely to experience high life satisfaction and team satisfaction when they are grateful, according to a 2008 study in the journal Social Indicators Research of high-schoolers.\n\nGratitude sharpens the senses, enhancing athletic performance according to Positive Performance Training. (credit:Alamy)
Linked WIth Better Immune Health(09 of10)
Gratefulness is linked with optimism, which in turn is linked with better immune health, WebMD reported. \n\nFor example, a University of Utah study showed that stressed-out law students who were optimistic had more white blood cells (which help boost your immune system) than people who were pessimistic, according to WebMD. (credit:Alamy)
Protects You From Negative Emotions That Come With Extreme Loss (10 of10)
WebMD reported that negative events can boost gratitude, and that gratitude can help to increase feelings of belonging and decrease feelings of stress.\n\nInterestingly, adversity can enhance gratitude, helping people to feel more connected after a terrible event, such as 9/11. A survey showed that feelings of gratitude were at high levels after 9/11, according to WebMD. (credit:Alamy)