Home / 健康 / 健康全般 / 睡眠 / 睡眠中に笑う3つの理由
笑うシーサー
笑うシーサー

睡眠中に笑う3つの理由

シーサー

睡眠中にいびきをかいたり、寝言を言うことはたまにあることですね。それと同様に、寝ているときに急に笑い出すことはありませんか。こういった場合、自分では自覚がなく、家族に後で知らされてびっくりする場合がほとんどでしょう。

人が睡眠中に笑う原因は様々ですが、ことによっては病気の可能性も考えられます。もしそういった症状がある人は、一度自分の症状を詳しく確かめてみた方がいいでしょう。

本記事では、睡眠中に笑う症状の理由と、その症状に関連する病気についてご紹介します。ご自分や家族が寝ているときに笑ってしまう方は、本記事でその原因についてチェックしてみて下さいね。

スポンサーリンク

睡眠中にどう笑っている?

笑う

睡眠中に笑うといっても、理由や症状は様々です。症状としては、以下のようなものが見られます。

  • 急に「ふふふ…」と笑い出す。
  • 笑いながら寝言を言う
  • 自分の笑い声ですぐに目が覚める
  • 起きているかのようにげらげら笑う

理由は後述しますが、“起きているかのようにげらげら笑う”という症状が見られる方は注意した方がいいでしょう。

睡眠中にどうして笑うのか

人が睡眠中に笑う状況・理由は、以下のように分類することができます。

レム睡眠

人は寝ているときに、浅い眠りのレム睡眠と深い眠りのノンレム睡眠を交互に繰り返しているのです。レム睡眠中は脳が働いているので、夢を見ます。このとき、脳の指令が身体に伝わって動いてしまわないように、脳が自分で伝達を制御しています。

しかし、何らかの理由で脳の制御が弱まることで寝言を言ったり、笑ったりという症状が起きてしまいます。決して喜ばしい症状ではありませんが、寝ているときにときどき笑う程度であれば心配はないでしょう。

自律神経のバランスの乱れ

自律神経のバランスが乱れてしまうと、睡眠時に交感神経の働きが活発になり、眠りが浅くなってしまいます。つまり、レム睡眠の割合が多くなってしまうのです。その結果、睡眠中に頻繁に笑ったり寝言を言ったりという症状が起こることになります。

寝ているときに笑う、という症状自体に大きな問題はありませんが、浅い眠りが長時間続くことで疲れがとれにくくなり、やがて疲労が蓄積していくことになってしまいます。

自律神経のバランスが乱れる原因として主なものの一つが、ストレスです。不規則な生活を送ることで生じる身体的ストレスや、さまざまな要因による精神的ストレスが考えられます。心当たりがある場合は、そのストレスの元を取り除くことで眠りも深くなります。

レム睡眠行動障害

注意していただきたいのが、睡眠中にゲラゲラ笑うという症状がある場合です。この症状が見られる場合は、レム睡眠行動障害を起こしている可能性が考えられます。

レム睡眠時は脳が覚醒している一方、脳からの指令が抑えられるため身体が動かないようになっている、そして何らかの理由でその制御が弱まるために笑いや寝言が見られる、というのはご承知の通りですね。

この制御がさらに弱まると、夢の内容そのままに身体が動いてしまいます。これをレム睡眠行動障害といいます。

レム睡眠行動障害とは

レム睡眠行動障害は50~60代の男性に多く見られる睡眠障害の一種で、下記のような症状を伴います。

  • 暴力的な夢や、追い詰められているような夢を見る
  • 睡眠中に叫ぶ、怒鳴る、泣く、大笑いなどが見られる
  • 睡眠中に殴る、蹴る
  • ひどいいびき、歯ぎしり、うめき声
  • 立ち上がる、動き回る

そして、さらには睡眠中に怒鳴りながら暴れるという症状にまで発展していきます。また、夢の内容をはっきり覚えている症状も特徴的です。

レム睡眠行動障害が警告してくれること

この睡眠障害は、症状そのものの恐ろしさというよりも、他の病気の前駆症状である可能性が高い点に注目されます。

全体の60%は原因不明ですが、この睡眠障害が見られる場合は以下の病気になる可能性が考えられます。

  • 脳変死疾患
  • パーキンソン病
  • 脊椎小脳変性症
  • 脳腫瘍

しかし、既に上記の病気にかかっている可能性も同時にあります。レム睡眠行動障害の症状がはっきりとみられる場合は、早めに病院に行くことをおすすめします。

睡眠障害の対応と治療ガイドライン
じほう
売り上げランキング: 17,721

まとめ:ひどい場合は病院へ

本記事では、睡眠中に笑ってしまう3つの理由と、それから考えられる病気についてご紹介してきました。その理由について、もう一度おさらいしてみましょう。

  • レム睡眠
  • 自律神経のバランスの乱れ
  • レム睡眠行動障害

睡眠中に笑う症状が見られても、大抵の場合は気にすることはありません。しかし、大声で笑うような症状がはっきりと見られるようであれば、早めの受診がベターです。

スポンサーリンク

Check Also

寝室

快適なベッドルームにするためのコーディネート術

一日の疲れを取るためのベッドル …

46 comments

  1. Great beat ! I would like to apprentice while you amend your
    website, how could i subscribe for a blog site? The account helped
    me a acceptable deal. I had been tiny bit acquainted of this your broadcast offered bright clear idea

  2. Do you have a spam problem on this website; I also am a blogger, and I was wanting
    to know your situation; many of us have developed some nice procedures and we are looking to exchange
    methods with others, please shoot me an email if interested.

  3. What’s up colleagues, its impressive paragraph concerning teachingand fully explained,
    keep it up all the time.

  4. Excellent goods from you, man. I’ve understand your stuff previous to and you’re just too excellent.

    I really like what you have acquired here,
    really like what you are stating and the way in which you say it.

    You make it entertaining and you still care for to keep it smart.
    I cant wait to read much more from you. This is actually a wonderful website.

  5. My brother recommended I might like this website. He was totally right.
    This post actually made my day. You can not imagine simply how much time
    I had spent for this info! Thanks!

  6. It’s very simple to find out any topic on web as compared to textbooks, as I found this post at this web site.

  7. Please let me know if you’re looking for a writer for
    your weblog. You have some really good articles
    and I believe I would be a good asset. If you ever want to
    take some of the load off, I’d love to write some content for your
    blog in exchange for a link back to mine. Please shoot me an e-mail if interested.

    Kudos!

  8. Thanks on your marvelous posting! I quite enjoyed reading it, you
    are a great author. I will be sure to bookmark your blog and will
    eventually come back very soon. I want to encourage you
    to definitely continue your great job, have a nice holiday weekend!

  9. Wonderful blog! I found it while surfing around on Yahoo News.
    Do you have any suggestions on how to get listed in Yahoo News?

    I’ve been trying for a while but I never seem to get there!

    Many thanks

  10. Hi there, just became alert to your blog through Google, and found that it’s truly informative.
    I am gonna watch out for brussels. I’ll be grateful if you continue this in future.

    Numerous people will be benefited from your writing.
    Cheers!

  11. Thanks in support of sharing such a pleasant idea, article is nice, thats why i have read it entirely

  12. Post writing is also a fun, if you know after that you can write or else it is complicated to write.

  13. I’m not sure why but this web site is loading very slow for me.
    Is anyone else having this problem or is it a problem on my end?
    I’ll check back later and see if the problem still exists.

  14. It’s appropriate time to make some plans for the future and
    it is time to be happy. I have read this post and if I could I
    want to suggest you few interesting things or tips.
    Maybe you could write next articles referring to this article.
    I want to read even more things about it!

  15. Hello i am kavin, its my first occasion to commenting
    anywhere, when i read this piece of writing i thought i could also create comment
    due to this good piece of writing.

  16. If you are going for best contents like myself, only pay a visit this site all the time as it provides quality contents, thanks

  17. Pretty nice post. I just stumbled upon your
    blog and wanted to say that I have really enjoyed surfing
    around your blog posts. In any case I’ll be subscribing to your rss feed and I hope you write again soon!

  18. Thanks for a marvelous posting! I definitely enjoyed
    reading it, you could be a great author. I will be sure
    to bookmark your blog and will often come back someday.
    I want to encourage you to definitely continue your great
    posts, have a nice morning!

  19. Link exchange is nothing else except it is just placing the
    other person’s website link on your page at proper place and other
    person will also do similar in support of you.

  20. Woah! I’m really loving the template/theme of this
    website. It’s simple, yet effective. A lot of times it’s very hard to get that “perfect balance” between usability and visual appearance.
    I must say that you’ve done a awesome job with this.
    In addition, the blog loads extremely quick for me on Opera.
    Excellent Blog!

  21. Simply wish to say your article is as surprising.
    The clarity on your publish is just nice and i could think you are
    a professional on this subject. Well with your permission let me to clutch your RSS feed to keep up to date with forthcoming
    post. Thanks 1,000,000 and please continue the enjoyable
    work.

  22. I am really grateful to the holder of this web page who
    has shared this fantastic post at at this place.

  23. Aw, this was an incredibly nice post. Finding the time and actual effort to produce a very good
    article… but what can I say… I put things off a whole lot and never manage to get anything
    done.

  24. I was recommended this blog by my cousin. I’m not sure whether this post is written by
    him as nobody else know such detailed about my difficulty.
    You’re amazing! Thanks!

  25. When I originally commented I appear to have clicked on the -Notify me when new comments
    are added- checkbox and from now on every time a comment is
    added I recieve 4 emails with the exact same comment. Perhaps
    there is an easy method you are able to remove me from that service?

    Thanks!

  26. I was curious if you ever considered changing the
    page layout of your blog? Its very well written; I love what youve got to say.
    But maybe you could a little more in the way of content so people could
    connect with it better. Youve got an awful lot of text for only having 1 or 2 pictures.
    Maybe you could space it out better?

  27. Do you have a spam issue on this website;
    I also am a blogger, and I was wondering your situation;
    many of us have developed some nice practices and
    we are looking to swap strategies with other folks, why not shoot me an email if interested.

  28. This design is incredible! You most certainly know how to keep a reader entertained.

    Between your wit and your videos, I was almost moved to start my own blog (well,
    almost…HaHa!) Excellent job. I really enjoyed what you had to say, and more than that, how
    you presented it. Too cool!

  29. I’ve learn a few excellent stuff here. Definitely value bookmarking for revisiting.
    I surprise how a lot effort you set to make this sort of great informative
    website.

  30. I just want to tell you that I am just new to blogs and honestly savored this web site. Probably I’m going to bookmark your blog post . You definitely have really good stories. Thanks a lot for sharing your website.

  31. I blog frequently and I seriously thank you for your
    information. The article has really peaked my interest. I am going to bookmark your website and keep checking for new information about once per week.

    I opted in for your Feed too.

  32. Hi there to every body, it’s my first visit of this webpage;
    this blog carries awesome and actually good data in support of
    readers.

  33. you are really a excellent webmaster. The site loading velocity is amazing.

    It seems that you are doing any unique trick.
    Furthermore, The contents are masterwork. you’ve done a magnificent job in this matter!

  34. It’s great that you are getting thoughts from
    this paragraph as well as from our argument made at this place.

  35. I am really grateful to the owner of this web site who has shared this wonderful article at at this time.

  36. This is my first time visit at here and i am actually pleassant
    to read all at alone place.

  37. It’s appropriate opportunity to get some schemes for the foreseeable future. I’ve read through this article and if I can, I wish to suggest to you you handful of important tip.

  38. Be sure that you have Silhouette Studio Designer Edition running and adhere to these easy actions to start! While it is crucial to have Silhouette Studio Designer Edition to import SVGs there is yet another step you’ve got to take to receive them actually cut. I am aware I’ve missed lots of nice anime collection, so should you have any suggestion, don’t hesitate to share about it in the comment section!

  39. I really need to reveal to you that I am new to blog posting and thoroughly admired your review. More than likely I am inclined to bookmark your blog post . You truly have fabulous article information. Admire it for telling with us your main site article

  40. When the mattress arrived, I unboxed that off the plastic as well as this promptly began forming. I’ve had a handful of actually terrific evenings rest and I’m delighted to say this is a really good mattress.

  41. I merely have to inform you you that I am new to blog posting and completely liked your write-up. More than likely I am going to save your blog post . You simply have memorable article content. Love it for telling with us your internet post

  1. Pingback: Google

  2. Pingback: best work at home jobs

  3. Pingback: Cheap MLB Long Sleeve Jersey

  4. Pingback: Google

  5. Pingback: Los Angeles

コメントを残す

メールアドレスが公開されることはありません。 * が付いている欄は必須項目です