{"id":142655,"date":"2026-08-12T20:15:09","date_gmt":"2026-08-13T00:15:09","guid":{"rendered":"https:\/\/cablemanpro.com\/wallstreetpr\/birth-order-linked-to-150-health-conditions-in-study-of-10-million-american-siblings-142655"},"modified":"2026-08-12T20:15:09","modified_gmt":"2026-08-13T00:15:09","slug":"birth-order-linked-to-150-health-conditions-in-study-of-10-million-american-siblings","status":"publish","type":"post","link":"https:\/\/cablemanpro.com\/wallstreetpr\/birth-order-linked-to-150-health-conditions-in-study-of-10-million-american-siblings-142655","title":{"rendered":"Birth order linked to 150 health conditions in study of 10 million American siblings"},"content":{"rendered":"
\n

Whether someone is the older or younger sibling may be linked to certain health outcomes later in life, according to a massive new study.<\/p>\n

Analyzing medical data<\/a> from 10 million U.S. siblings over two decades, researchers from the University of Chicago and Columbia University found links suggesting that birth order may be connected to specific long-term health risks.<\/p>\n

Researchers examined 569 disease categories across families and among siblings, identifying 150 conditions that were significantly associated with birth order.<\/p>\n

LONGER LIVES, WORSE HEALTH? SCIENTISTS UNCOVER TROUBLING TREND ACROSS GENERATIONS<\/strong><\/a><\/p>\n

First-born children showed a higher likelihood of neurodevelopmental and psychiatric diagnoses, including autism<\/a>, ADHD, Tourette’s and OCD, as well as immune-allergic conditions like food allergies.<\/p>\n

Second-born children were statistically more prone to migraines<\/a>, shingles, substance use disorders and gastrointestinal issues like gastritis.<\/p>\n

Discussing the findings on “Fox & Friends,” Dr. Marc Siegel, senior medical analyst for Fox News, noted the value of such a wide-scale study.<\/p>\n

“I love this study because it opens a lot of questions more than it gives answers, but I think I have some answers,” the doctor said.<\/p>\n

CLICK HERE FOR MORE HEALTH STORIES<\/strong><\/a><\/p>\n

Regarding the heightened prevalence of ADHD among first-borns, Siegel offered his own hypothesis about parental behavior.<\/p>\n

“My theory, they get more stimuli. The parents are like hovering over them, helicoptering them … and they don’t know where to look,” he said.<\/p>\n

TEST YOURSELF WITH OUR LATEST LIFESTYLE QUIZ<\/strong><\/a><\/p>\n

Addressing the disparities in allergic conditions<\/a>, Siegel pointed to early environmental exposure, stating, “I think it’s because the firstborn’s immune system hasn’t seen the environment before. And if it’s not set properly, you get an allergy.”<\/p>\n

Siegel also touched on biological and psychological factors when evaluating differences between siblings.<\/p>\n

“I think the womb changes after you have your first child, and the second child gets a womb that’s already been used. So therefore, it’s more set for it,” he said.<\/p>\n

CLICK HERE TO SIGN UP FOR OUR HEALTH NEWSLETTER<\/strong><\/a><\/p>\n

Regarding the higher rate of substance use disorders<\/a> among second-born children, Siegel suggested emotional drivers, saying, “it may be the same idea: ‘I want attention. I’m looking for attention. I wanna do something to get a rise out of you.'”<\/p>\n

While the research highlights patterns across a large population, the study comes with limitations.<\/p>\n

The findings demonstrate correlations rather than direct causation, meaning the trends don’t necessarily stem from physiological changes, early microbial exposures or social dynamics.<\/p>\n

Additionally, the data relies on commercial health insurance claims, which can reflect differences in diagnosis, healthcare-seeking behavior and parental attention<\/a> rather than true biological functions alone.<\/p>\n

Factors such as the age of parents between births and varying age gaps between siblings also complicate these associations. Ultimately, researchers emphasized that birth order serves as a modest population-level risk marker rather than a definitive health predictor.<\/p>\n

The research was published in the journal Nature Health.<\/p>\n<\/div>\n

Source – https:\/\/www.foxnews.com\/health\/birth-order-linked-150-health-conditions-study-10-million-american-siblings-two-decades <\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

Whether someone is the older or younger sibling may be linked to certain health outcomes later in life, according to a massive new study. Analyzing […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"rop_custom_images_group":[],"rop_custom_messages_group":[],"rop_publish_now":"initial","rop_publish_now_accounts":{"twitter_2902945987_2902945987":""},"rop_publish_now_history":[],"rop_publish_now_status":"pending","footnotes":""},"categories":[16563],"tags":[],"stock_ticker":[],"class_list":["post-142655","post","type-post","status-publish","format-standard","hentry","category-market-news","entry"],"acf":[],"yoast_head":"\nBirth order linked to 150 health conditions in study of 10 million American siblings - Wall Street PR<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/cablemanpro.com\/wallstreetpr\/birth-order-linked-to-150-health-conditions-in-study-of-10-million-american-siblings-142655\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Birth order linked to 150 health conditions in study of 10 million American siblings - Wall Street PR\" \/>\n<meta property=\"og:description\" content=\"Whether someone is the older or younger sibling may be linked to certain health outcomes later in life, according to a massive new study. Analyzing […]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/cablemanpro.com\/wallstreetpr\/birth-order-linked-to-150-health-conditions-in-study-of-10-million-american-siblings-142655\" \/>\n<meta property=\"og:site_name\" content=\"Wall Street PR\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/WallStreetPR\/\" \/>\n<meta property=\"article:published_time\" content=\"2026-08-13T00:15:09+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/cablemanpro.com\/wallstreetpr\/wp-content\/uploads\/2021\/06\/businessman-showing-business-evolution1.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"715\" \/>\n\t<meta property=\"og:image:height\" content=\"423\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"admin\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"admin\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/cablemanpro.com\/wallstreetpr\/birth-order-linked-to-150-health-conditions-in-study-of-10-million-american-siblings-142655#article\",\"isPartOf\":{\"@id\":\"https:\/\/cablemanpro.com\/wallstreetpr\/birth-order-linked-to-150-health-conditions-in-study-of-10-million-american-siblings-142655\"},\"author\":{\"name\":\"admin\",\"@id\":\"https:\/\/cablemanpro.com\/wallstreetpr\/#\/schema\/person\/6e00efa2abc413bdc0bca51a90c54d36\"},\"headline\":\"Birth order linked to 150 health conditions in study of 10 million American siblings\",\"datePublished\":\"2026-08-13T00:15:09+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/cablemanpro.com\/wallstreetpr\/birth-order-linked-to-150-health-conditions-in-study-of-10-million-american-siblings-142655\"},\"wordCount\":493,\"publisher\":{\"@id\":\"https:\/\/cablemanpro.com\/wallstreetpr\/#organization\"},\"articleSection\":[\"Market News\"],\"inLanguage\":\"en-US\"},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/cablemanpro.com\/wallstreetpr\/birth-order-linked-to-150-health-conditions-in-study-of-10-million-american-siblings-142655\",\"url\":\"https:\/\/cablemanpro.com\/wallstreetpr\/birth-order-linked-to-150-health-conditions-in-study-of-10-million-american-siblings-142655\",\"name\":\"Birth order linked to 150 health conditions in study of 10 million American siblings - Wall Street PR\",\"isPartOf\":{\"@id\":\"https:\/\/cablemanpro.com\/wallstreetpr\/#website\"},\"datePublished\":\"2026-08-13T00:15:09+00:00\",\"breadcrumb\":{\"@id\":\"https:\/\/cablemanpro.com\/wallstreetpr\/birth-order-linked-to-150-health-conditions-in-study-of-10-million-american-siblings-142655#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/cablemanpro.com\/wallstreetpr\/birth-order-linked-to-150-health-conditions-in-study-of-10-million-american-siblings-142655\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/cablemanpro.com\/wallstreetpr\/birth-order-linked-to-150-health-conditions-in-study-of-10-million-american-siblings-142655#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/cablemanpro.com\/wallstreetpr\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Birth order linked to 150 health conditions in study of 10 million American siblings\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/cablemanpro.com\/wallstreetpr\/#website\",\"url\":\"https:\/\/cablemanpro.com\/wallstreetpr\/\",\"name\":\"Wall Street PR\",\"description\":\"Latest News From WallStreet\",\"publisher\":{\"@id\":\"https:\/\/cablemanpro.com\/wallstreetpr\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/cablemanpro.com\/wallstreetpr\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Organization\",\"@id\":\"https:\/\/cablemanpro.com\/wallstreetpr\/#organization\",\"name\":\"Wall Street PR\",\"url\":\"https:\/\/cablemanpro.com\/wallstreetpr\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/cablemanpro.com\/wallstreetpr\/#\/schema\/logo\/image\/\",\"url\":\"https:\/\/cablemanpro.com\/wallstreetpr\/wp-content\/uploads\/2019\/10\/brand-logo.png\",\"contentUrl\":\"https:\/\/cablemanpro.com\/wallstreetpr\/wp-content\/uploads\/2019\/10\/brand-logo.png\",\"width\":537,\"height\":70,\"caption\":\"Wall Street PR\"},\"image\":{\"@id\":\"https:\/\/cablemanpro.com\/wallstreetpr\/#\/schema\/logo\/image\/\"},\"sameAs\":[\"https:\/\/www.facebook.com\/WallStreetPR\/\",\"https:\/\/x.com\/WallstreetPRs\"]},{\"@type\":\"Person\",\"@id\":\"https:\/\/cablemanpro.com\/wallstreetpr\/#\/schema\/person\/6e00efa2abc413bdc0bca51a90c54d36\",\"name\":\"admin\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/cablemanpro.com\/wallstreetpr\/wp-content\/uploads\/2022\/09\/360_F_336393115_5gCUfwn76x3MJaCJMYDKLoRebkC8QyrL-300x300.jpg\",\"url\":\"https:\/\/cablemanpro.com\/wallstreetpr\/wp-content\/uploads\/2022\/09\/360_F_336393115_5gCUfwn76x3MJaCJMYDKLoRebkC8QyrL-300x300.jpg\",\"contentUrl\":\"https:\/\/cablemanpro.com\/wallstreetpr\/wp-content\/uploads\/2022\/09\/360_F_336393115_5gCUfwn76x3MJaCJMYDKLoRebkC8QyrL-300x300.jpg\",\"caption\":\"admin\"},\"url\":\"https:\/\/cablemanpro.com\/wallstreetpr\/author\/admin\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Birth order linked to 150 health conditions in study of 10 million American siblings - Wall Street PR","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/cablemanpro.com\/wallstreetpr\/birth-order-linked-to-150-health-conditions-in-study-of-10-million-american-siblings-142655","og_locale":"en_US","og_type":"article","og_title":"Birth order linked to 150 health conditions in study of 10 million American siblings - Wall Street PR","og_description":"Whether someone is the older or younger sibling may be linked to certain health outcomes later in life, according to a massive new study. Analyzing […]","og_url":"https:\/\/cablemanpro.com\/wallstreetpr\/birth-order-linked-to-150-health-conditions-in-study-of-10-million-american-siblings-142655","og_site_name":"Wall Street PR","article_publisher":"https:\/\/www.facebook.com\/WallStreetPR\/","article_published_time":"2026-08-13T00:15:09+00:00","og_image":[{"width":715,"height":423,"url":"https:\/\/cablemanpro.com\/wallstreetpr\/wp-content\/uploads\/2021\/06\/businessman-showing-business-evolution1.jpg","type":"image\/jpeg"}],"author":"admin","twitter_misc":{"Written by":"admin","Est. reading time":"2 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/cablemanpro.com\/wallstreetpr\/birth-order-linked-to-150-health-conditions-in-study-of-10-million-american-siblings-142655#article","isPartOf":{"@id":"https:\/\/cablemanpro.com\/wallstreetpr\/birth-order-linked-to-150-health-conditions-in-study-of-10-million-american-siblings-142655"},"author":{"name":"admin","@id":"https:\/\/cablemanpro.com\/wallstreetpr\/#\/schema\/person\/6e00efa2abc413bdc0bca51a90c54d36"},"headline":"Birth order linked to 150 health conditions in study of 10 million American siblings","datePublished":"2026-08-13T00:15:09+00:00","mainEntityOfPage":{"@id":"https:\/\/cablemanpro.com\/wallstreetpr\/birth-order-linked-to-150-health-conditions-in-study-of-10-million-american-siblings-142655"},"wordCount":493,"publisher":{"@id":"https:\/\/cablemanpro.com\/wallstreetpr\/#organization"},"articleSection":["Market News"],"inLanguage":"en-US"},{"@type":"WebPage","@id":"https:\/\/cablemanpro.com\/wallstreetpr\/birth-order-linked-to-150-health-conditions-in-study-of-10-million-american-siblings-142655","url":"https:\/\/cablemanpro.com\/wallstreetpr\/birth-order-linked-to-150-health-conditions-in-study-of-10-million-american-siblings-142655","name":"Birth order linked to 150 health conditions in study of 10 million American siblings - Wall Street PR","isPartOf":{"@id":"https:\/\/cablemanpro.com\/wallstreetpr\/#website"},"datePublished":"2026-08-13T00:15:09+00:00","breadcrumb":{"@id":"https:\/\/cablemanpro.com\/wallstreetpr\/birth-order-linked-to-150-health-conditions-in-study-of-10-million-american-siblings-142655#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/cablemanpro.com\/wallstreetpr\/birth-order-linked-to-150-health-conditions-in-study-of-10-million-american-siblings-142655"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/cablemanpro.com\/wallstreetpr\/birth-order-linked-to-150-health-conditions-in-study-of-10-million-american-siblings-142655#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/cablemanpro.com\/wallstreetpr\/"},{"@type":"ListItem","position":2,"name":"Birth order linked to 150 health conditions in study of 10 million American siblings"}]},{"@type":"WebSite","@id":"https:\/\/cablemanpro.com\/wallstreetpr\/#website","url":"https:\/\/cablemanpro.com\/wallstreetpr\/","name":"Wall Street PR","description":"Latest News From WallStreet","publisher":{"@id":"https:\/\/cablemanpro.com\/wallstreetpr\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/cablemanpro.com\/wallstreetpr\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Organization","@id":"https:\/\/cablemanpro.com\/wallstreetpr\/#organization","name":"Wall Street PR","url":"https:\/\/cablemanpro.com\/wallstreetpr\/","logo":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/cablemanpro.com\/wallstreetpr\/#\/schema\/logo\/image\/","url":"https:\/\/cablemanpro.com\/wallstreetpr\/wp-content\/uploads\/2019\/10\/brand-logo.png","contentUrl":"https:\/\/cablemanpro.com\/wallstreetpr\/wp-content\/uploads\/2019\/10\/brand-logo.png","width":537,"height":70,"caption":"Wall Street PR"},"image":{"@id":"https:\/\/cablemanpro.com\/wallstreetpr\/#\/schema\/logo\/image\/"},"sameAs":["https:\/\/www.facebook.com\/WallStreetPR\/","https:\/\/x.com\/WallstreetPRs"]},{"@type":"Person","@id":"https:\/\/cablemanpro.com\/wallstreetpr\/#\/schema\/person\/6e00efa2abc413bdc0bca51a90c54d36","name":"admin","image":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/cablemanpro.com\/wallstreetpr\/wp-content\/uploads\/2022\/09\/360_F_336393115_5gCUfwn76x3MJaCJMYDKLoRebkC8QyrL-300x300.jpg","url":"https:\/\/cablemanpro.com\/wallstreetpr\/wp-content\/uploads\/2022\/09\/360_F_336393115_5gCUfwn76x3MJaCJMYDKLoRebkC8QyrL-300x300.jpg","contentUrl":"https:\/\/cablemanpro.com\/wallstreetpr\/wp-content\/uploads\/2022\/09\/360_F_336393115_5gCUfwn76x3MJaCJMYDKLoRebkC8QyrL-300x300.jpg","caption":"admin"},"url":"https:\/\/cablemanpro.com\/wallstreetpr\/author\/admin"}]}},"_links":{"self":[{"href":"https:\/\/cablemanpro.com\/wallstreetpr\/wp-json\/wp\/v2\/posts\/142655","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/cablemanpro.com\/wallstreetpr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/cablemanpro.com\/wallstreetpr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/cablemanpro.com\/wallstreetpr\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/cablemanpro.com\/wallstreetpr\/wp-json\/wp\/v2\/comments?post=142655"}],"version-history":[{"count":0,"href":"https:\/\/cablemanpro.com\/wallstreetpr\/wp-json\/wp\/v2\/posts\/142655\/revisions"}],"wp:attachment":[{"href":"https:\/\/cablemanpro.com\/wallstreetpr\/wp-json\/wp\/v2\/media?parent=142655"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cablemanpro.com\/wallstreetpr\/wp-json\/wp\/v2\/categories?post=142655"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cablemanpro.com\/wallstreetpr\/wp-json\/wp\/v2\/tags?post=142655"},{"taxonomy":"stock_ticker","embeddable":true,"href":"https:\/\/cablemanpro.com\/wallstreetpr\/wp-json\/wp\/v2\/stock_ticker?post=142655"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}