I've asked CHAT to give me the tendencies of birth order. FYI, I'm a firstborn. I'd say he pretty much nailed it. Which one are you? 👀👇 #BirthOrder #EldestMiddleYoungest
February 24, 2025 at 10:48 PM
I've asked CHAT to give me the tendencies of birth order. FYI, I'm a firstborn. I'd say he pretty much nailed it. Which one are you? 👀👇 #BirthOrder #EldestMiddleYoungest
Interesting piece on personality in the Washington Post, they talked to @tedmond.bsky.social and @tuckerdrob.bsky.social about changing personality, birth order, genetics effects… (but no @dingdingpeng.the100.ci cameo on birthorder!)
Column | Birth order doesn’t predict your personality. Here’s what does.
New research is challenging assumptions about what determines our personality — and showing that you can change it.
www.washingtonpost.com
October 6, 2026 at 7:38 PM
Interesting piece on personality in the Washington Post, they talked to @tedmond.bsky.social and @tuckerdrob.bsky.social about changing personality, birth order, genetics effects… (but no @dingdingpeng.the100.ci cameo on birthorder!)
I feel a “birthorder in college major switching” coming up…
March 24, 2026 at 4:25 PM
I feel a “birthorder in college major switching” coming up…
Today's earworm, courtesy of youngest child who is legitimately hilarious:
🎵Turn around
Tell me what you see-eeee-eeeee
In the void of space
No-one hears you scree-eeeee-eam🎵
🎵Turn around
Tell me what you see-eeee-eeeee
In the void of space
No-one hears you scree-eeeee-eam🎵
March 25, 2026 at 3:05 PM
mumblog.org · Lila Sjöberg
If you have siblings, you have probably heard some version of this: firstborns are responsible and high-achieving, middle children are diplomatic and …
#birthorder #parentingmyths #childdevelopment #personality #parentingresearch #momsky
If you have siblings, you have probably heard some version of this: firstborns are responsible and high-achieving, middle children are diplomatic and …
#birthorder #parentingmyths #childdevelopment #personality #parentingresearch #momsky
Birth Order Does Not Shape Your Personality the Way You Were Told. Here Is What Actually Does.
mumblog.org · Lila Sjöberg
Two independent studies in 2015 tested birth order effects on personality with over 30,000 participants and found essentially zero. Studies that showed effects were measuring how people perform their family role when surrounded by family, not their actual personality. Lila Sjöberg explains what actually shapes who your children become.
mumblog.org
October 2, 2026 at 11:57 PM
mumblog.org · Lila Sjöberg
If you have siblings, you have probably heard some version of this: firstborns are responsible and high-achieving, middle children are diplomatic and …
#birthorder #parentingmyths #childdevelopment #personality #parentingresearch #momsky
If you have siblings, you have probably heard some version of this: firstborns are responsible and high-achieving, middle children are diplomatic and …
#birthorder #parentingmyths #childdevelopment #personality #parentingresearch #momsky
Thrilled to attend to the hilarious premiere of #BirthOrder, an original comedy series created by Faith Abraham & Vanessa St. Clair. Their first episode is now streaming on YouTube (link below) so give yourself a break from all your worries & enjoy the laughs!
October 3, 2025 at 10:30 PM
Thrilled to attend to the hilarious premiere of #BirthOrder, an original comedy series created by Faith Abraham & Vanessa St. Clair. Their first episode is now streaming on YouTube (link below) so give yourself a break from all your worries & enjoy the laughs!
The firstborn overachiever and the rebellious youngest are family performances, not personalities. The research has been clear on this since 2015.
#BirthOrder #ParentingMyths #ChildDevelopment #Personality #ParentingResearch #Momsky
#BirthOrder #ParentingMyths #ChildDevelopment #Personality #ParentingResearch #Momsky
Birth Order Does Not Shape Your Personality the Way You Were Told. Here Is What Actually Does.
Two independent studies in 2015 tested birth order effects on personality with over 30,000 participants and found essentially zero. Studies that showed effects were measuring how people perform their family role when surrounded by family, not their actual personality. Lila Sjöberg explains what actually shapes who your children become.
mumblog.org
October 2, 2026 at 11:58 PM
The firstborn overachiever and the rebellious youngest are family performances, not personalities. The research has been clear on this since 2015.
#BirthOrder #ParentingMyths #ChildDevelopment #Personality #ParentingResearch #Momsky
#BirthOrder #ParentingMyths #ChildDevelopment #Personality #ParentingResearch #Momsky
Large #MetaAnalysis finds no significant difference in systolic or diastolic #BloodPressure between firstborns and later-borns. #BirthOrder may not affect blood pressure levels after all. #Epidemiology #PublicHealth www.sciencedirect.com/org/science/...
Unraveling the link between birth order and blood pressure: insights from a comprehensive systematic review and meta-analysis
The objective of the present systematic review was to incorporate previous studies investigating the association of birth order with the risk of systo…
www.sciencedirect.com
July 29, 2025 at 5:51 AM
Large #MetaAnalysis finds no significant difference in systolic or diastolic #BloodPressure between firstborns and later-borns. #BirthOrder may not affect blood pressure levels after all. #Epidemiology #PublicHealth www.sciencedirect.com/org/science/...
I struggled a little to keep it “me” and not perform 😆, but let me know what you think!
#justforfun #siblings #encanto #birthorder
#justforfun #siblings #encanto #birthorder
October 25, 2025 at 12:22 PM
I struggled a little to keep it “me” and not perform 😆, but let me know what you think!
#justforfun #siblings #encanto #birthorder
#justforfun #siblings #encanto #birthorder
Time to get this off my chest:
#BirthOrder tropes — i.e. the responsible oldest 𝘃𝘀. the coddled & irresponsible youngest — 𝘢𝘳𝘦𝘯'𝘵 𝘣𝘢𝘤𝘬𝘦𝘥 𝘣𝘺 𝘴𝘤𝘪𝘦𝘯𝘤𝘦!
Largest studies, Rohrer et al. (377k+ subjects), found 𝘯𝘰 𝘮𝘦𝘢𝘯𝘪𝘯𝘨𝘧𝘶𝘭 𝘦𝘧𝘧𝘦𝘤𝘵 𝘰𝘯 𝘱𝘦𝘳𝘴𝘰𝘯𝘢𝘭𝘪𝘵𝘺.
www.pnas.org/doi/10.1073/...
#BirthOrder tropes — i.e. the responsible oldest 𝘃𝘀. the coddled & irresponsible youngest — 𝘢𝘳𝘦𝘯'𝘵 𝘣𝘢𝘤𝘬𝘦𝘥 𝘣𝘺 𝘴𝘤𝘪𝘦𝘯𝘤𝘦!
Largest studies, Rohrer et al. (377k+ subjects), found 𝘯𝘰 𝘮𝘦𝘢𝘯𝘪𝘯𝘨𝘧𝘶𝘭 𝘦𝘧𝘧𝘦𝘤𝘵 𝘰𝘯 𝘱𝘦𝘳𝘴𝘰𝘯𝘢𝘭𝘪𝘵𝘺.
www.pnas.org/doi/10.1073/...
PNAS
Proceedings of the National Academy of Sciences (PNAS), a peer reviewed journal of the National Academy of Sciences (NAS) - an authoritative source of high-impact, original research that broadly spans...
www.pnas.org
August 3, 2026 at 1:25 PM
Time to get this off my chest:
#BirthOrder tropes — i.e. the responsible oldest 𝘃𝘀. the coddled & irresponsible youngest — 𝘢𝘳𝘦𝘯'𝘵 𝘣𝘢𝘤𝘬𝘦𝘥 𝘣𝘺 𝘴𝘤𝘪𝘦𝘯𝘤𝘦!
Largest studies, Rohrer et al. (377k+ subjects), found 𝘯𝘰 𝘮𝘦𝘢𝘯𝘪𝘯𝘨𝘧𝘶𝘭 𝘦𝘧𝘧𝘦𝘤𝘵 𝘰𝘯 𝘱𝘦𝘳𝘴𝘰𝘯𝘢𝘭𝘪𝘵𝘺.
www.pnas.org/doi/10.1073/...
#BirthOrder tropes — i.e. the responsible oldest 𝘃𝘀. the coddled & irresponsible youngest — 𝘢𝘳𝘦𝘯'𝘵 𝘣𝘢𝘤𝘬𝘦𝘥 𝘣𝘺 𝘴𝘤𝘪𝘦𝘯𝘤𝘦!
Largest studies, Rohrer et al. (377k+ subjects), found 𝘯𝘰 𝘮𝘦𝘢𝘯𝘪𝘯𝘨𝘧𝘶𝘭 𝘦𝘧𝘧𝘦𝘤𝘵 𝘰𝘯 𝘱𝘦𝘳𝘴𝘰𝘯𝘢𝘭𝘪𝘵𝘺.
www.pnas.org/doi/10.1073/...
🧬 Here's a wild one: the more older brothers a man has, the slightly higher his odds of being gay — and this has been confirmed over and over in research. It's not about upbringing or environment — it's biology.
#BirthOrder #SexualOrientation
#BirthOrder #SexualOrientation
How Hormones Shape Sexual Orientation & Behavior | Dr. Marc Breedlove
Andrew Huberman on YouTube
www.youtube.com
April 1, 2026 at 8:00 PM
🧬 Here's a wild one: the more older brothers a man has, the slightly higher his odds of being gay — and this has been confirmed over and over in research. It's not about upbringing or environment — it's biology.
#BirthOrder #SexualOrientation
#BirthOrder #SexualOrientation
🙈 Our study shows younger siblings spend more time on screens than big sisters and brothers
theconversation.com/our-study-sh...
#children #siblings #youth #screens #culture #birthorder
theconversation.com/our-study-sh...
#children #siblings #youth #screens #culture #birthorder
Our study shows younger siblings spend more time on screens than big sisters and brothers
Younger siblings also spend less time per day on ‘enrichment activities’, such as music practise or reading.
theconversation.com
March 12, 2026 at 3:02 PM
🙈 Our study shows younger siblings spend more time on screens than big sisters and brothers
theconversation.com/our-study-sh...
#children #siblings #youth #screens #culture #birthorder
theconversation.com/our-study-sh...
#children #siblings #youth #screens #culture #birthorder
Reliable (and sometimes quite substantial) birth order effects on disease risk in a study of 10 million siblings.
“Birth order and disease risk across the human phenome” #birthorder
www.nature.com/articles/s44...
“Birth order and disease risk across the human phenome” #birthorder
www.nature.com/articles/s44...
Birth order and disease risk across the human phenome - Nature Health
In multiple study designs involving millions of matched individuals, either between or within families, birth order determined differential associations with disease risk across 569 diseases.
www.nature.com
August 3, 2026 at 2:08 PM
Reliable (and sometimes quite substantial) birth order effects on disease risk in a study of 10 million siblings.
“Birth order and disease risk across the human phenome” #birthorder
www.nature.com/articles/s44...
“Birth order and disease risk across the human phenome” #birthorder
www.nature.com/articles/s44...
What Your Sibling Rank Means for Your Long-Term Health #AdultMentalHealth #BirthOrder #KidsMentalHealth #MentalHealth #SiblingHierarchy https://megadoctornews.com/what-your-sibling-rank-means-for-your-long-term-health/
What Your Sibling Rank Means for Your Long-Term Health
Anyone who has a brother or sister knows that siblings raised under the same roof can show stark dissimilarities when it comes to everything from favorite colors to food allergies.
megadoctornews.com
September 17, 2026 at 9:44 PM
What Your Sibling Rank Means for Your Long-Term Health #AdultMentalHealth #BirthOrder #KidsMentalHealth #MentalHealth #SiblingHierarchy https://megadoctornews.com/what-your-sibling-rank-means-for-your-long-term-health/
If you felt seen during “Encanto”’s “Surface Pressure”, then you might want to read this book. As an eldest daughter, it has helped me understand so much! #EldestDaughter #OldestDaughter #BirthOrder Oldest Daughters: What to know if you are one or have ever been bossed around by one a.co/d/01OeARpT
Amazon.com
a.co
September 2, 2026 at 12:56 PM
If you felt seen during “Encanto”’s “Surface Pressure”, then you might want to read this book. As an eldest daughter, it has helped me understand so much! #EldestDaughter #OldestDaughter #BirthOrder Oldest Daughters: What to know if you are one or have ever been bossed around by one a.co/d/01OeARpT
Birth order leaves traces in your medical record
#health #birthorder #medicalrecords
#health #birthorder #medicalrecords
August 9, 2026 at 12:12 PM
Birth order leaves traces in your medical record
#health #birthorder #medicalrecords
#health #birthorder #medicalrecords
The 1 Thing #Therapists Say Harms Eldest #Daughters' #Happiness The Most
#Mentalhealth experts reveal how #birthorder affects #wellbeing and how you can prioritize your #joy.
www.huffpost.com/entry/eldest...
#Mentalhealth experts reveal how #birthorder affects #wellbeing and how you can prioritize your #joy.
www.huffpost.com/entry/eldest...
The 1 Thing Therapists Say Harms Eldest Daughters' Happiness The Most
Mental health experts reveal how birth order affects well-being and how you can prioritize your joy.
www.huffpost.com
August 8, 2026 at 2:07 PM
The 1 Thing #Therapists Say Harms Eldest #Daughters' #Happiness The Most
#Mentalhealth experts reveal how #birthorder affects #wellbeing and how you can prioritize your #joy.
www.huffpost.com/entry/eldest...
#Mentalhealth experts reveal how #birthorder affects #wellbeing and how you can prioritize your #joy.
www.huffpost.com/entry/eldest...
This is the #infographic about first born and second born children and which diseases they are more associated with. I have asthma, and that is on the list for first born children. #birthorder 🤨
August 6, 2026 at 5:28 PM
This is the #infographic about first born and second born children and which diseases they are more associated with. I have asthma, and that is on the list for first born children. #birthorder 🤨
Are first-borns really more prone to allergies and neurodevelopmental conditions? 🧬 New research tracking 10 million siblings reveals surprising links between birth order and disease risk. www.news-medical.net/news/2026080... #BirthOrder #Health @nature.com
Study maps how birth order tracks disease risk across 10 million siblings
Researchers analyzing claims from more than 10 million siblings linked first-born status to higher odds of several neurodevelopmental and allergic diagnoses, while second-born status tracked with subs...
www.news-medical.net
August 5, 2026 at 2:37 AM
Are first-borns really more prone to allergies and neurodevelopmental conditions? 🧬 New research tracking 10 million siblings reveals surprising links between birth order and disease risk. www.news-medical.net/news/2026080... #BirthOrder #Health @nature.com
😦 Firstborn-like traits: 55%
🤦 Meanwhile:
- Firstborn: 53%
- Later-born: 50%
Attributing this to a variety of factors, incl. #EatingDisorders
⏰ Time to retrain da ol' brain 🥊🏋️♀️🧠
Source: openpsychometrics.org/tests/birtho...
#BirthOrder #PersonalityQuiz
🤦 Meanwhile:
- Firstborn: 53%
- Later-born: 50%
Attributing this to a variety of factors, incl. #EatingDisorders
⏰ Time to retrain da ol' brain 🥊🏋️♀️🧠
Source: openpsychometrics.org/tests/birtho...
#BirthOrder #PersonalityQuiz
Firstborn Personality Scale
Personality test measuring the traits common in first born children.
openpsychometrics.org
March 25, 2026 at 3:20 PM
😦 Firstborn-like traits: 55%
🤦 Meanwhile:
- Firstborn: 53%
- Later-born: 50%
Attributing this to a variety of factors, incl. #EatingDisorders
⏰ Time to retrain da ol' brain 🥊🏋️♀️🧠
Source: openpsychometrics.org/tests/birtho...
#BirthOrder #PersonalityQuiz
🤦 Meanwhile:
- Firstborn: 53%
- Later-born: 50%
Attributing this to a variety of factors, incl. #EatingDisorders
⏰ Time to retrain da ol' brain 🥊🏋️♀️🧠
Source: openpsychometrics.org/tests/birtho...
#BirthOrder #PersonalityQuiz
Does birth order shape personality? The answer isn't as straightforward as we think. I was really happy to share my thoughts and insights for this post on Business Standard.
www.business-standard.com/health/does-...
#birthorder #psychology #development #familydynamics #businessstandard
www.business-standard.com/health/does-...
#birthorder #psychology #development #familydynamics #businessstandard
www.business-standard.com
December 2, 2025 at 10:54 AM
Does birth order shape personality? The answer isn't as straightforward as we think. I was really happy to share my thoughts and insights for this post on Business Standard.
www.business-standard.com/health/does-...
#birthorder #psychology #development #familydynamics #businessstandard
www.business-standard.com/health/does-...
#birthorder #psychology #development #familydynamics #businessstandard
2) Stop overfunctioning.
• You can’t fix their views over turkey. Their views are not your problem and vice versa.
• Let awkward silences be awkward—someone else can fill them
• Not your job to keep everyone comfortable
• If it’s truly toxic, leaving early is fine
#birthorder
#family
• You can’t fix their views over turkey. Their views are not your problem and vice versa.
• Let awkward silences be awkward—someone else can fill them
• Not your job to keep everyone comfortable
• If it’s truly toxic, leaving early is fine
#birthorder
#family
November 27, 2025 at 1:07 PM
2) Stop overfunctioning.
• You can’t fix their views over turkey. Their views are not your problem and vice versa.
• Let awkward silences be awkward—someone else can fill them
• Not your job to keep everyone comfortable
• If it’s truly toxic, leaving early is fine
#birthorder
#family
• You can’t fix their views over turkey. Their views are not your problem and vice versa.
• Let awkward silences be awkward—someone else can fill them
• Not your job to keep everyone comfortable
• If it’s truly toxic, leaving early is fine
#birthorder
#family
Are you a high-achieving #firstborn, or chillaxed #baby of the family (or somewhere in the middle)? 👶 Turns out, the order we enter the world may shape how we view ourselves -- interact with others. Take the quiz ⬇️ and see where you shake out! #parentingsky #birthorder
tinyurl.com/348jzmpm
tinyurl.com/348jzmpm
Quiz: Does your personality match your birth order? - ParentsTogether
Are you a firstborn or lastborn? Take our quiz and discover how birth order in your family may have influenced personality traits.
tinyurl.com
March 31, 2025 at 7:08 PM
Are you a high-achieving #firstborn, or chillaxed #baby of the family (or somewhere in the middle)? 👶 Turns out, the order we enter the world may shape how we view ourselves -- interact with others. Take the quiz ⬇️ and see where you shake out! #parentingsky #birthorder
tinyurl.com/348jzmpm
tinyurl.com/348jzmpm
Birth Order Episode 1: Pilot
YouTube video by Vanessa St. Clair
youtu.be
October 3, 2025 at 10:30 PM