--- title: Health: Blood Test Predicts Alzheimer's, Study Finds description: Scientists say the test could predict the disease with 90% accuracy canonical: https://time.com/17778/blood-test-could-predict-alzheimers-study-finds/ author: Dan Kedmey article:opinion: false article:content_tier: free article:published_time: 2014-03-10T08:39:09.000Z article:modified_time: 2026-02-21T06:40:20.681Z article:section: Health og:title: Health: Blood Test Predicts Alzheimer's, Study Finds og:description: Scientists say the test could predict the disease with 90% accuracy og:url: https://time.com/17778/blood-test-could-predict-alzheimers-study-finds/ og:site_name: TIME og:image: https://static.time.com/v3/assets/bltea6093859af6183b/blt49a7004b1b08762b/69868424adae4414a8541d2f/110688608.jpg?branch=production&width=3840&quality=75&auto=webp&crop=16:9 og:image:width: 1200 og:image:height: 675 og:image:alt: A woman suffering from Alzheimer's og:type: article twitter:card: summary_large_image twitter:title: Health: Blood Test Predicts Alzheimer's, Study Finds twitter:description: Scientists say the test could predict the disease with 90% accuracy twitter:image: https://static.time.com/v3/assets/bltea6093859af6183b/blt49a7004b1b08762b/69868424adae4414a8541d2f/110688608.jpg?branch=production&width=3840&quality=75&auto=webp&crop=16:9 ---  # Blood Test Could Predict Alzheimer's, Study Finds  by [Dan Kedmey](https://time.com/author/dan-kedmey/)  ## Dan Kedmey Mar 10, 2014 8:39 AM UTC  A woman, suffering from Alzheimer's desease, walks in a corridor on March 18, 2011 in a retirement house in Angervilliers, eastern France. AFP PHOTO / SEBASTIEN BOZON (Photo credit should read SEBASTIEN BOZON/AFP/Getty Images) A woman, suffering from Alzheimer's desease, walks in a corridor on March 18, 2011 in a retirement house in Angervilliers, eastern France. AFP PHOTO / SEBASTIEN BOZON (Photo credit should read SEBASTIEN BOZON/AFP/Getty Images)Sebastien Bozon - AFP/Getty Images  by [Dan Kedmey](https://time.com/author/dan-kedmey/)  ## Dan Kedmey Mar 10, 2014 8:39 AM UTC Scientists [say](http://www.theguardian.com/science/2014/mar/09/blood-test-could-detect-early-signs-dementia) a new blood test could detect Alzheimer’s disease three years before the patient develops symptoms of memory loss. The study, [published](http://www.nature.com/nm/journal/vaop/ncurrent/full/nm.3466.html) in the journal Nature Medicine, identified 10 molecules in the blood that predicted Alzheimer’s with 90% accuracy. Researchers wrote the bloods tests “can change how patients, their families and treating physicians plan for and manage the disorder.” On the other hand, experts [warned](http://www.theguardian.com/science/2014/mar/09/blood-test-could-detect-early-signs-dementia) the _Guardian_ that a test for an incurable disease with a 10% rate of error would have to be approached with caution, both by the doctor and the patient. \[[_Guardian_](http://www.theguardian.com/science/2014/mar/09/blood-test-could-detect-early-signs-dementia)\] ```json [{"@context":"https://schema.org","@type":"NewsArticle","@id":"https://time.com/17778/blood-test-could-predict-alzheimers-study-finds/","mainEntityOfPage":{"@type":"WebPage","@id":"https://time.com/17778/blood-test-could-predict-alzheimers-study-finds/"},"headline":"Blood Test Could Predict Alzheimer's, Study Finds","datePublished":"2014-03-10T08:39:09.000Z","dateModified":"2026-02-21T06:40:20.681Z","description":"Scientists say the test could predict the disease with 90% accuracy","url":"https://time.com/17778/blood-test-could-predict-alzheimers-study-finds/","keywords":["Disease","diagnosis","Dementia","Alzheimer's","memory"],"thumbnailUrl":"https://static.time.com/v3/assets/bltea6093859af6183b/blt49a7004b1b08762b/69868424adae4414a8541d2f/110688608.jpg?branch=production&width=1200&quality=75&auto=webp&crop=1200:675&height=675","author":[{"@type":"Person","name":"Dan Kedmey","jobTitle":null,"url":"https://time.com/author/dan-kedmey/"}],"articleSection":"Health","image":[{"@type":"ImageObject","url":"https://static.time.com/v3/assets/bltea6093859af6183b/blt49a7004b1b08762b/69868424adae4414a8541d2f/110688608.jpg?branch=production&width=1200&quality=75&auto=webp&crop=1200:675&height=675","width":1200,"height":675,"headline":"A woman suffering from Alzheimer's","caption":"A woman, suffering from Alzheimer's dese","creditText":"Sebastien Bozon - AFP/Getty Images","representativeOfPage":true}],"publisher":{"@type":"Organization","name":"Time","url":"https://time.com/","logo":{"@type":"ImageObject","url":"https://time.com/images/logo.png","width":528,"height":156},"foundingDate":"March 3, 1923","sameAs":["https://www.facebook.com/time","https://www.instagram.com/time/?hl=en","https://twitter.com/time","https://www.pinterest.com/timemagazine"]}},{"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"item":{"@id":"/section/health/","name":"Health"}},{"@type":"ListItem","position":2,"item":{"@id":"https://time.com/17778/blood-test-could-predict-alzheimers-study-finds/","name":"Blood Test Could Predict Alzheimer's, Study Finds"}}]}] ```