home
RSS
Smoking boosts risk for Alzheimer's
October 25th, 2010
04:52 PM ET

Smoking boosts risk for Alzheimer's

Here's yet another reason to stop smoking: It elevates the risk of Alzheimer's disease and vascular dementia, according to a new study.

An analysis of more than 20,000 men and women found a 157 percent heightened risk of Alzheimer's disease in people who had smoked more than two packs of cigarettes a day. For vascular dementia, the second most common form of dementia, these smokers had a 172 percent increased risk.

"Dementia is a disease that crops up in late life, and that becomes clinically apparent, but I think people really need to think about risk factors for it over the life course," said Rachel Whitmer, study co-author and research scientist with Kaiser Permanente Division of Research in Oakland, California.

The study, sponsored by Kaiser Permanente, is published in the Archives of Internal Medicine.

Researchers say the association between smoking and various forms of dementia is strong, but they do not know exactly why. It has been shown before that people who smoke are more likely to have hypertension and cerebral vascular disease, as well as inflammation, Whitmer said. Smoking may contribute to the damage of brain blood vessels in addition to brain cells, she said.

The data came from Kaiser Permanente Northern California members surveyed between 1978 and 1985. At that time, they were between ages 50 and 60. Diagnoses of various forms of dementia among these people were made from 1994 to 2008, and researchers took that information from electronic health records. The participants in this study were all alive and still members of the health plan in 1994.

Researchers found that associations with the development of the disease are more modest among smokers who use up fewer than two packs a day, but still significant. Those who smoked a half-pack to one pack a day had an overall 37 percent elevated risk of dementia, and those who smoked between one and two packs had a 44 percent heightened risk, compared to non-smokers.

But this could be an underestimation, because some smokers who would have developed dementia died before diagnosis, said Kenneth Hepburn, associate dean for research at the Emory University School of Nursing, who was not involved in the study.

The reported risk of dementia among heavy smokers is also likely an underestimation because many of those people will die before they're old enough to develop dementia, he said.

While the elevated risk for various forms of dementia was shown for those smoking two packs a day in midlife, smoking less than half a pack of cigarettes a day, or having smoked in the past, did not appear to raise the risk compared with nonsmokers.

Hepburn found the study compelling, and noted that it incorporated an ethnically diverse population of both men and women.

"This gives great confidence in saying this kind of heavy smoking has some kind of association – and it looks like a fairly strong association – with the development of the disease," he said.

One limitation of the study is that researchers collected data only about smoking habits among middle-aged people; it did not look at what happened among those who had quit after the initial survey, Whitmer said.

The research speaks to what the Alzheimer's Association Maintain Your Brain campaign is promoting: that brain health has a lot to do with overall health, Hepburn said.

"The brain is part of the body, it’s part of the whole and if you assault parts, it’s going to have an impact on the whole," he said.


soundoff (1,896 Responses)
  1. tuyen tap nhac remix chau khai phong

    Xem Thẳng Soccergiavanghomnay net tag gia vang 9999 hom nay bao nhieuTheo thể thức thi đấu, đội thắng ở cặp đấu này sẽ giành tấm vé đến Lithuania vào ngày hội bóng đá lớn nhất thế giới mang đến futsal. Tuyển futsal Việt Nam bước vào trận play-off lượt đi tranh vé dự play-off World Cup 2021 với sự tự tin. Tuy vậy, HLV Phạm Minh Giang bày tỏ, toàn đội không ngán Lebanon song sẽ tìm cách để khắc chế sức mạnh của đối thủ bởi bên trên băng ghế huấn luyện là nhà cầm quân Ramiro Lopez, người từng dẫn dắt futsal Tây Ban Nha.|Dựa vào lịch thi đấu, bạn có thể sắp xếp làm việc

    https://virandoamor.com/detail/fpt-truc-tiep-vtv-6-129538.html

    June 12, 2021 at 16:39 | Report abuse | Reply
  2. 대구출장마사지

    Everything is very open with a clear clarification of the issues. It was really informative. Your website is extremely helpful. Thank you for sharing!

    https://diigo.com/0kc4mz

    June 12, 2021 at 17:07 | Report abuse | Reply
  3. 대구출장

    This is a topic that is near to my heart... Thank you! Exactly where are your contact details though?

    https://gumroad.com/7441733074212/p/why-biotic-therapy-is-a-fantastic-add-on-to-complementary-therapies

    June 12, 2021 at 17:58 | Report abuse | Reply
  4. 전주 출장마사지

    Everything is very open with a really clear description of the challenges. It was really informative. Your site is extremely helpful. Thanks for sharing!

    https://firsturl.de/2qqn4cT

    June 12, 2021 at 21:27 | Report abuse | Reply
  5. 전주 출장안마

    Having read this I believed it was really enlightening. I appreciate you spending some time and energy to put this information together. I once again find myself spending way too much time both reading and leaving comments. But so what, it was still worthwhile!

    https://www.gamespot.com/profile/cerealgate0/about-me/

    June 12, 2021 at 21:47 | Report abuse | Reply
  6. bong da gh

    Tỷ Số đá Bóng Trực Tuyến Hôm Naylịch chiếu phim lotte đà nẵngTheo thể thức thi đấu, đội thắng ở cặp đấu này sẽ giành tấm vé đến Lithuania vào ngày hội bóng đá lớn nhất thế giới đến futsal. Tuyển futsal Việt Nam bước vào trận play-off lượt đi tranh vé dự play-off World Cup 2021 với sự tự tin. Tuy vậy, HLV Phạm Minh Giang bày tỏ, toàn đội không ngán Lebanon tuy vậy sẽ tìm cách để khắc chế sức mạnh của đối thủ bởi bên trên băng ghế huấn luyện là nhà cầm quân Ramiro Lopez, người từng dẫn dắt futsal Tây Ban Nha.|Dựa vào lịch thi đấu, quý khách rất có thể sắp xếp làm việc

    https://virandoamor.com/detail/hn24h-93707.html

    June 13, 2021 at 01:36 | Report abuse | Reply
  7. 전주 출장안마

    Right here is the right webpage for anyone who wishes to understand this topic. You understand a whole lot its almost hard to argue with you (not that I personally will need toÖHaHa). You definitely put a fresh spin on a subject that's been discussed for years. Excellent stuff, just excellent!

    https://unsplash.com/@dockicon3

    June 13, 2021 at 03:10 | Report abuse | Reply
  8. 케이출장

    Good post. I learn something new and challenging on blogs I stumbleupon everyday. It's always exciting to read content from other authors and use something from other web sites.

    https://postheaven.net/anma2laughpillow4/massage-therapy-and-lactation

    June 13, 2021 at 03:48 | Report abuse | Reply
  9. 출장안마

    I like it whenever people get together and share opinions. Great website, keep it up!

    https://anotepad.com/notes/75m3sxg7

    June 13, 2021 at 04:27 | Report abuse | Reply
  10. 인천출장마사지

    This website was... how do I say it? Relevant!! Finally I've found something that helped me. Appreciate it!

    http://www.atlasroleplay.com/forum/profile/attackbrake4

    June 13, 2021 at 05:22 | Report abuse | Reply
  11. 출장마사지

    Everyone loves it whenever people come together and share opinions. Great site, continue the good work!

    https://anotepad.com/notes/5parkmam

    June 13, 2021 at 07:16 | Report abuse | Reply
  12. 케이출장

    Very good post! We will be linking to this particularly great post on our website. Keep up the great writing.

    https://www.pinterest.com/hassanrossi026/

    June 13, 2021 at 07:38 | Report abuse | Reply
  13. 인천출장안마

    Itís hard to find knowledgeable people for this topic, but you seem like you know what youíre talking about! Thanks

    https://scientific-programs.science/wiki/Finding_a_Fantastic_Massage_Therapist

    June 13, 2021 at 08:48 | Report abuse | Reply
  14. 전주 출장마사지

    Good info. Lucky me I came across your site by accident (stumbleupon). I've saved as a favorite for later!

    http://kolokolchik237.ru/user/jacketblood26/

    June 13, 2021 at 09:40 | Report abuse | Reply
  15. 인천 출장안마

    I couldnít resist commenting. Well written!

    http://coilatom09.bravesites.com/entries/general/low-back-pain-relief-during-acupressure

    June 13, 2021 at 10:22 | Report abuse | Reply
  16. 출장안마

    Saved as a favorite, I love your blog!

    https://zenwriting.net/coilpest41/swedish-massage-table-and-the-way-it-works

    June 13, 2021 at 10:52 | Report abuse | Reply
  17. 케이출장

    You're so cool! I do not think I've read through anything like that before. So nice to find another person with some genuine thoughts on this subject matter. Seriously.. thank you for starting this up. This website is one thing that is required on the internet, someone with some originality!

    https://anma5roomwax6.tumblr.com/post/649073502896455680/finding-a-good-massage-therapist

    June 13, 2021 at 12:01 | Report abuse | Reply
  18. bang xep hang c1

    Thẳng Bóng Đá Hôm Nayca khia.linkĐây có lẽ là trường hợp “của đi thay nhân viên" khá may mắn đối cùng với Ben McLemore. Thiếu chút nữa tay ném của Los Angeles Lakers đã có được thể gặp gỡ tai nạn nguy hiểm. Cập nhật kết trái trận nước ta vs Lebanon nằm trong play-off vòng loại Futsal World Cup 2021.

    https://virandoamor.com/detail/90phutvn-live-94907.html

    June 13, 2021 at 14:53 | Report abuse | Reply
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38

Leave a Reply to Increase Domain Authority


 

CNN welcomes a lively and courteous discussion as long as you follow the Rules of Conduct set forth in our Terms of Service. Comments are not pre-screened before they post. You agree that anything you post may be used, along with your name and profile picture, in accordance with our Privacy Policy and the license you have granted pursuant to our Terms of Service.

Advertisement
About this blog

Get a behind-the-scenes look at the latest stories from CNN Chief Medical Correspondent, Dr. Sanjay Gupta, Senior Medical Correspondent Elizabeth Cohen and the CNN Medical Unit producers. They'll share news and views on health and medical trends - info that will help you take better care of yourself and the people you love.