なぜはみがきは必要なの?じつは原始人には虫歯がなかった

免疫力
きらっく
きらっく

きらっくです。

あなたは食べたあとに、はみがきをしますか?

原始人は、はみがきをしなくても虫歯はなかったそうです。

そもそも虫歯はどうやってできるのかというと、虫歯菌、別名「ミュータンス菌」によって虫歯になります。

このミュータンス菌から酸が発生し、歯の表面をまもっているエナメル質をとかすことによって、虫歯になってしまうのです。

なのでわたしたちは、虫歯にならないために食べたあと、はみがきをしているのです。

またエナメル質にもつよさがあり、酸にたいしてエナメル質がつよければ、虫歯にもなりにくいと言われています。

個人差のあるエナメル質ですが、原始人からは虫歯は見つからなかったようです。

今回は、原始人と現代人をくらべ、なぜ虫歯になるひとがおおくなったのかをおはなしします。

最後までよろしくお願いします。

結論

食生活の変化と、食べものをかむ回数がへったことによって、虫歯はふえた

原始人には虫歯なし

きらっく
きらっく

原始人に虫歯がなかった理由は、一説によると”食生活”と言われています。

虫歯菌の栄養は、です。

原始人は狩猟民族であり、お肉やお魚を食べていました。

しかし弥生時代には、お米や小麦などをつくりはじめ、農耕民族になりました。

農耕民族になったことで、虫歯菌の栄養となる糖をよく食べるようになり、虫歯になるひとがでてきたのです。

また経済成長とともに、たくさんの糖をふくんだものを作るようになったことで、虫歯になるひとがふえたと思います。

虫歯にならないために、はみがきをする習慣となったのです。

コンビニより多い歯医者

きらっく
きらっく

コンビニよりも歯医者のほうが、1万件おおいことを知っていますか?

2022年時点で

  • コンビニは5万5956店舗
  • 歯医者は6万7886施設

コンビニよりも歯医者がおおいのは、それだけ虫歯になるひとがおおいからです。

ところで、あなたは今まで歯医者にいったことはありますか?

虫歯の治療だけでなく、口のなかの検査などでいったことがあるのではないですか。

ちなみに、生まれたばかりのあかちゃんには、虫歯菌はありません

しかし、虫歯菌をもった大人によってうつしています。

なので「あかちゃんに口うつしなどはやめよう」と言われているのです。

一度でも虫歯菌におかされると、なくなることはありません。

つまり、ずっと虫歯とつきあっていかなければならないのです

虫歯予防に唾液をふやそう

きらっく
きらっく

やわらかいものばかりになり、食べものをかむ回数がへっているのも、虫歯になる原因です。

農耕民族になり、お米や小麦などのやわらかい食べものを食べるようになり、かむ回数がへり、唾液の量もへっています。

唾液がへることで、虫歯になりやすくなるのです。

というのも、唾液には4つの役割があります。

  1. 自浄作用
  2. 殺菌作用
  3. 緩衝作用
  4. 再石灰化作用

自浄作用と殺菌作用は、唾液によって虫歯菌をやっつけます

緩衝作用は、虫歯菌から発生する酸を中和する役割です。

再石灰化作用は、酸によって溶けてしまったエナメル質を再生させる役割です。

この4つの役割によっても、虫歯にならないようにしています。

しかし、現代の食生活では、やわらかい食べものばかりなうえ、糖をおおくふくんでいます。

唾液の量もへり、糖はふえ、虫歯菌のやりたい放題となっているわけです。

よって、食べたあとのはみがきもたいせつですが、おなじくらいかむ回数もたいせつです。

また原始人のように、タンパク質をおおく食べる生活をすると、虫歯だけでなく健康にもつながります。

なぜタンパク質をおおく食べると健康につながるのかは、こちらの記事を参考にしてください。

まとめ

農耕民族になり、糖をおおくふくんだ食べものをよく口にするようになりました。

いまわたしが糖について学んだことは

  • 薬物とおなじくらい依存する
  • 脳をばかにする
  • 免疫力をさげる
  • 健康を害す
  • 虫歯をふやす

というように、糖は人類には必要のないものなのかもしれません

きらっく
きらっく

最後までお読みいただきありがとうございます。

きょうもわたしはあなたと出会えて「運がいい」

ありがとうございました。

コメント

  1. tlover tonet より:

    hello!,I love your writing so much! proportion we be in contact more approximately your post on AOL? I require an expert in this space to resolve my problem. May be that is you! Looking ahead to peer you.

  2. he blog was how do i say it… relevant, finally something that helped me. Thanks

  3. wastafelkraan より:

    I was just seeking this information for some time. After six hours of continuous Googleing, at last I got it in your website. I wonder what is the lack of Google strategy that don’t rank this kind of informative sites in top of the list. Usually the top web sites are full of garbage.

  4. Hi , I do believe this is an excellent blog. I stumbled upon it on Yahoo , i will come back once again. Money and freedom is the best way to change, may you be rich and help other people.

  5. I’ve recently started a site, the information you offer on this website has helped me tremendously. Thanks for all of your time & work. “The more sand that has escaped from the hourglass of our life, the clearer we should see through it.” by Jean Paul.

  6. bulantogel より:

    Hey very nice website!! Man .. Excellent .. Amazing .. I’ll bookmark your web site and take the feeds alsoKI am satisfied to search out a lot of useful info here in the put up, we need work out more techniques in this regard, thanks for sharing. . . . . .

  7. tq32q50aeuxxc より:

    Great blog here! Also your web site quite a bit up fast! What host are you the use of? Can I get your associate hyperlink to your host? I desire my site loaded up as quickly as yours lol

  8. If some one needs expert view on the topic of running a blog afterward i recommend him/her to go to see this weblog, Keep up
    the good work.

    Here is my page: vpn special coupon

  9. What Is FitSpresso? As you may know, FitSpresso is a natural weight loss supplement that comes in capsule form.

  10. vpn special より:

    With havin so much content do you ever run into any problems of
    plagorism or copyright infringement? My blog has a
    lot of unique content I’ve either created myself or outsourced but it seems a
    lot of it is popping it up all over the web without my permission. Do you know any solutions to help protect against content
    from being ripped off? I’d really appreciate it.

    Feel free to surf to my page :: vpn special

  11. you are really a good webmaster. The site loading speed is amazing. It seems that you’re doing any unique trick. Also, The contents are masterpiece. you have done a excellent job on this topic!

  12. I have been absent for a while, but now I remember why I used to love this blog. Thanks, I’ll try and check back more frequently. How frequently you update your site?

  13. You are my inhalation, I have few blogs and infrequently run out from brand :). “The soul that is within me no man can degrade.” by Frederick Douglas.

  14. Boostaro より:

    Those are yours alright! . We at least need to get these people stealing images to start blogging! They probably just did a image search and grabbed them. They look good though!

  15. Rattling instructive and fantastic body structure of written content, now that’s user pleasant (:.

  16. Sight Care より:

    I gotta bookmark this web site it seems very useful handy

  17. Fitspresso stands out among the crowded health supplement market as an exceptional product.

  18. Java Brun より:

    magnificent post, very informative. I wonder why the other experts of this sector do not notice this. You should continue your writing. I’m confident, you have a huge readers’ base already!

  19. Tonic Greens より:

    Only a smiling visitant here to share the love (:, btw outstanding style and design. “He profits most who serves best.” by Arthur F. Sheldon.

  20. Read More... より:

    Hello, Neat post. There is a problem along with your web site in web explorer, would check this… IE nonetheless is the marketplace leader and a large component to other folks will miss your magnificent writing because of this problem.

  21. fitspresso より:

    Throughout the awesome design of things you’ll receive an A just for effort and hard work. Where you actually lost me was first on your details. As people say, the devil is in the details… And it couldn’t be much more correct right here. Having said that, permit me inform you what did work. The article (parts of it) is certainly highly powerful and this is possibly why I am taking the effort to opine. I do not really make it a regular habit of doing that. Second, despite the fact that I can easily see a leaps in reasoning you come up with, I am not necessarily sure of exactly how you seem to unite the ideas which produce the actual conclusion. For right now I will yield to your point however wish in the future you actually link the facts much better.

  22. Thanx for the effort, keep up the good work Great work, I am going to start a small Blog Engine course work using your site I hope you enjoy blogging with the popular BlogEngine.net.Thethoughts you express are really awesome. Hope you will right some more posts.

  23. Soulmate Sketch より:

    Throughout the grand design of things you’ll receive an A+ just for effort and hard work. Exactly where you actually misplaced me was in all the specifics. You know, as the maxim goes, the devil is in the details… And that couldn’t be more accurate here. Having said that, allow me reveal to you exactly what did give good results. Your article (parts of it) is pretty powerful which is possibly the reason why I am making the effort in order to comment. I do not make it a regular habit of doing that. Second, despite the fact that I can notice the leaps in reasoning you come up with, I am not confident of how you seem to unite your ideas that help to make your conclusion. For right now I will, no doubt subscribe to your position however wish in the near future you actually link the facts much better.

  24. Its like you read my mind! You seem to know a lot about this, like you wrote the book in it or something. I think that you can do with a few pics to drive the message home a bit, but instead of that, this is wonderful blog. A great read. I’ll definitely be back.

  25. Renew より:

    The next time I read a blog, I hope that it doesnt disappoint me as a lot as this one. I mean, I know it was my choice to learn, however I really thought youd have one thing attention-grabbing to say. All I hear is a bunch of whining about something that you could repair in case you werent too busy on the lookout for attention.

  26. Nagano Lean Body Tonic: An IntroductionNagano Lean Body Tonic is a dietary supplement designed to help lose unhealthy weight.

  27. I just could not depart your website prior facebook vs eharmony to find love online suggesting that I extremely
    enjoyed the standard information an individual provide in your
    guests? Is gonna be back steadily in order to investigate cross-check new posts

  28. naturally like your web site but you have to check the spelling on several of your posts. Many of them are rife with spelling problems and I in finding it very troublesome to inform the truth nevertheless I’ll certainly come back again.

  29. vývoj na mieru より:

    A large percentage of of whatever you point out is supprisingly appropriate and that makes me wonder the reason why I had not looked at this in this light previously. This article really did turn the light on for me as far as this particular subject goes. But at this time there is just one position I am not too comfy with and whilst I attempt to reconcile that with the central theme of your point, allow me observe exactly what the rest of the visitors have to point out.Very well done.

  30. The Lottery Defeater software is an innovative program designed to enhance your lottery playing experience. Utilizing cutting-edge algorithms, it s

  31. Thanks, I’ve just been looking for info about this subject for a long time and yours is the best I have found out so far. However, what in regards to the bottom line? Are you positive about the supply?

  32. Heya i’m for the first time here. I found this board and I in finding It truly useful & it helped me out a lot. I am hoping to present something back and aid others such as you aided me.

  33. Leanbiome より:

    hello there and thank you for your info – I’ve certainly picked up anything new from right here. I did however expertise some technical issues using this web site, since I experienced to reload the website lots of times previous to I could get it to load correctly. I had been wondering if your hosting is OK? Not that I’m complaining, but sluggish loading instances times will very frequently affect your placement in google and could damage your high quality score if ads and marketing with Adwords. Well I am adding this RSS to my e-mail and can look out for much more of your respective fascinating content. Ensure that you update this again very soon..

  34. It’s in point of fact a nice and useful piece of information. I’m glad that you shared this useful info with us. Please stay us up to date like this. Thank you for sharing.

  35. fitspresso より:

    FitSpresso is a natural weight loss supplement crafted from organic ingredients, offering a safe and side effect-free solution for reducing body weight.

  36. I carry on listening to the news broadcast talk about receiving boundless online grant applications so I have been looking around for the finest site to get one. Could you tell me please, where could i find some?

  37. Yes! Finally someone writes about eharmony special coupon code 2024.

  38. I really delighted to find this site on bing, just what I was searching for : D as well bookmarked.

  39. Prodentim より:

    It’s in point of fact a nice and helpful piece of information. I’m satisfied that you simply shared this useful info with us. Please stay us up to date like this. Thanks for sharing.

  40. Oh my goodness! Amazing article dude! Thank you, However I am going through
    troubles with your RSS. I don’t know why I can’t join it.
    Is there anybody else having the same RSS problems? Anyone that knows the answer can you
    kindly respond? Thanx!!

    My web site: nordvpn special coupon code 2024

  41. About GlucoTrust. GlucoTrust is a natural supplement that promotes normal blood sugar levels.

  42. I really appreciate this post. I have been looking everywhere for this! Thank goodness I found it on Bing. You have made my day! Thanks again!

  43. Puravive review より:

    I am no longer positive the place you’re getting your information, but great topic. I needs to spend some time finding out much more or working out more. Thank you for wonderful info I was searching for this info for my mission.

  44. I cling on to listening to the newscast lecture about receiving free online grant applications so I have been looking around for the best site to get one. Could you advise me please, where could i acquire some?

  45. other より:

    Great post. I used to be checking continuously this weblog and I’m inspired! Extremely useful information specifically the last phase 🙂 I take care of such info much. I was looking for this certain information for a very lengthy time. Thank you and good luck.

  46. Some truly great info , Sword lily I observed this. “Life is divided into the horrible and the miserable.” by Woody Allen.

  47. One such software that has been generating buzz these days is the Lottery Defeater

  48. serolean より:

    We are a group of volunteers and starting a brand new scheme in our community. Your web site provided us with valuable info to paintings on. You have performed a formidable job and our whole community might be thankful to you.

  49. puravive より:

    What Is Puravive? Puravive is an herbal weight loss supplement that supports healthy weight loss in individuals.

  50. What Is Puravive? Puravive is an herbal weight loss supplement that supports healthy weight loss in individuals.

  51. An interesting discussion is worth comment. I think that it’s best to write extra on this subject, it won’t be a taboo subject but usually people are not sufficient to speak on such topics. To the next. Cheers

  52. Thanks for sharing superb informations. Your web site is very cool. I’m impressed by the details that you have on this website. It reveals how nicely you understand this subject. Bookmarked this website page, will come back for extra articles. You, my pal, ROCK! I found just the information I already searched everywhere and just could not come across. What a perfect site.

  53. Enjoyed studying this, very good stuff, thanks. “Hereafter, in a better world than this, I shall desire more love and knowledge of you.” by William Shakespeare.

  54. I have been browsing online greater than three hours as of late, yet I by no means discovered any interesting article like yours. It¦s beautiful price sufficient for me. In my view, if all webmasters and bloggers made just right content material as you did, the internet will likely be much more helpful than ever before.

  55. Sugar Defender より:

    My developer is trying to convince me to move to .net from PHP. I have always disliked the idea because of the expenses. But he’s tryiong none the less. I’ve been using WordPress on a number of websites for about a year and am worried about switching to another platform. I have heard great things about blogengine.net. Is there a way I can import all my wordpress content into it? Any help would be really appreciated!

  56. Honista APK より:

    Very interesting info !Perfect just what I was looking for! “I meant what I said, and I said what I meant. An elephant’s faithful, one hundred percent.” by Dr. Seuss.

  57. rtp adm4d より:

    Wow! Thank you! I continually wanted to write on my blog something like that. Can I take a portion of your post to my blog?

  58. rtp adm4d より:

    I’ve recently started a blog, the info you offer on this site has helped me tremendously. Thanks for all of your time & work. “Money is power, freedom, a cushion, the root of al evil, the sum of all blessings.” by Carl Sandburg.

  59. I have been examinating out some of your stories and it’s pretty clever stuff. I will make sure to bookmark your site.

  60. Fitspresso より:

    I have been checking out a few of your stories and i can state pretty nice stuff. I will make sure to bookmark your website.

  61. fantastic post, very informative. I wonder why the other experts of this sector don’t notice this. You should continue your writing. I am confident, you’ve a great readers’ base already!

  62. What Is FitSpresso? The effective weight management formula FitSpresso is designed to inherently support weight loss. It is made using a synergistic blend of ingredients chosen especially for their metabolism-boosting and fat-burning features.

  63. Im now not sure where you’re getting your information, however great topic. I needs to spend some time studying much more or understanding more. Thank you for wonderful info I used to be searching for this info for my mission.

  64. Generally I do not read article on blogs, but I would like to say that this write-up very forced me to try and do it! Your writing style has been surprised me. Thanks, quite nice post.

  65. logo dizajn より:

    I was studying some of your content on this site and I believe this website is rattling instructive! Retain putting up.

  66. Woh I enjoy your content, saved to fav! .

  67. SightCare より:

    You made several fine points there. I did a search on the subject and found a good number of people will consent with your blog.

  68. Only wanna admit that this is very useful, Thanks for taking your time to write this.

  69. Hello there, You’ve done an incredible job. I will certainly digg it and personally recommend to my friends. I’m sure they’ll be benefited from this site.

  70. Hey, you used to write wonderful, but the last few posts have been kinda boring?K I miss your tremendous writings. Past few posts are just a little out of track! come on!

  71. renewreviews より:

    I like this blog very much, Its a real nice spot to read and get info .

  72. Enjoyed reading this, very good stuff, thankyou. “Hereafter, in a better world than this, I shall desire more love and knowledge of you.” by William Shakespeare.

  73. Sugar Defender より:

    I conceive other website owners should take this web site as an model, very clean and fantastic user friendly layout.

  74. Do you have a spam issue on this website; I also am a blogger, and I was curious about your situation; many of us have created some nice procedures and we are looking to trade techniques with others, why not shoot me an email if interested.

  75. Audionex より:

    I am no longer positive where you are getting your info, however good topic. I needs to spend a while finding out more or figuring out more. Thanks for wonderful information I was looking for this info for my mission.

  76. Kerassentials より:

    I like what you guys are up too. Such clever work and reporting! Keep up the superb works guys I have incorporated you guys to my blogroll. I think it will improve the value of my website :).

  77. Tonic Greens より:

    I was suggested this web site by my cousin. I’m not sure whether this post is written by him as nobody else know such detailed about my problem. You are wonderful! Thanks!

  78. I think this site contains very excellent written articles blog posts.

  79. Pronerve 6 より:

    Valuable info. Lucky me I found your website by accident, and I am shocked why this accident did not happened earlier! I bookmarked it.

  80. Hey There. I found your blog the usage of msn. This is a really smartly written article. I will be sure to bookmark it and return to read extra of your useful information. Thanks for the post. I will certainly comeback.

  81. xhamster より:

    Thanks for always delivering valuable content.

  82. FitSpresso is a brand-new natural weight loss aid designed to work on the root cause of excess and unexplained weight gain. The supplement uses an advanced blend of vitamins, minerals, and antioxidants to support healthy weight loss by targeting the fat cells’ circadian rhythm.

  83. Fitspresso より:

    Way cool, some valid points! I appreciate you making this article available, the rest of the site is also high quality. Have a fun.

  84. Fitspresso is a brand-new natural weight loss aid designed to work on the root cause of excess and unexplained weight gain. The supplement uses an advanced blend of vitamins, minerals, and antioxidants to support healthy weight loss by targeting the fat cells’ circadian rhythm.

  85. Fitspresso is a brand-new natural weight loss aid designed to work on the root cause of excess and unexplained weight gain. The supplement uses an advanced blend of vitamins, minerals, and antioxidants to support healthy weight loss by targeting the fat cells’ circadian rhythm.

  86. Its like you read my mind! You appear to know so much about this, like you wrote the book in it or something. I think that you can do with some pics to drive the message home a little bit, but other than that, this is great blog. A fantastic read. I’ll certainly be back.

  87. fitspresso より:

    Great info and right to the point. I am not sure if this is in fact the best place to ask but do you guys have any ideea where to employ some professional writers? Thank you 🙂

  88. When I initially commented I clicked the “Notify me when new comments are added” checkbox and now each time a comment is added I get three emails with the same comment. Is there any way you can remove people from that service? Many thanks!

  89. I do like the manner in which you have framed this particular situation and it really does supply me personally a lot of fodder for consideration. On the other hand, coming from everything that I have observed, I only trust as other opinions pack on that people keep on issue and not embark on a tirade regarding the news du jour. Still, thank you for this exceptional point and even though I do not necessarily go along with it in totality, I regard your standpoint.

  90. After I initially commented I clicked the -Notify me when new comments are added- checkbox and now each time a comment is added I get four emails with the same comment. Is there any manner you may remove me from that service? Thanks!

  91. Cellucare より:

    Heya i am for the primary time here. I came across this board and I to find It really useful & it helped me out much. I’m hoping to give something back and aid others like you aided me.

  92. tonic greens より:

    Hey There. I found your blog using msn. This is an extremely well written article. I will make sure to bookmark it and come back to read more of your useful info. Thanks for the post. I will certainly return.

  93. Prodentim より:

    I conceive this web site has got very superb composed subject material posts.

  94. This really answered my downside, thanks!

  95. Hi my family member! I wish to say that this post is amazing, nice written and include almost all significant infos. I’d like to see extra posts like this .

  96. Sugar Defender より:

    I have read a few just right stuff here. Certainly price bookmarking for revisiting. I surprise how much attempt you place to make the sort of magnificent informative web site.

  97. Erecprime より:
  98. Pro nerve より:
  99. Flexigenics より:
  100. Boostaro より:
  101. Lipozem より:
  102. Lipozem review より:
  103. Boostaro より:
  104. Quietum Plus より:
  105. Lipozem review より:
  106. Alphabites より:
  107. LIPOZEM REVIEW より:
  108. Alpha bites より:
  109. Lipozem reviews より:
  110. Alpha bites より:
  111. BOOSTARO より:
  112. Lipozem より:
  113. LIPOZEM REVIEW より:
  114. PURAVIVE より:
  115. Really Appreciate this article, how can I make is so that I get an update sent in an email whenever you publish a fresh update?

  116. LipoSlim review より:
  117. Bariatric tea より:
タイトルとURLをコピーしました