The collection reads as a broad, casual feed reacting to the Nature Medicine article on cellular turnover. Several posts merely name the study or share it as a hook for motivational or lifestyle content, using upbeat or ominous-positivity language. A subset adds precise figures (e.g., daily cell replacement, proportion of blood cells) and cites sources, showing factual engagement. Tone shifts between celebratory, cautious, and skeptical; some comments correct figures or emphasize paywalls and access. Overall, the discourse treats the article as a interesting factual nugget rather than a catalyst for deep scientific debate, with many posts invoking related self-help or inspirational messaging rather than technical analysis.
AgreementNeither agree nor disagree
Overall sentiment toward the article is mixed and mainly informational; some posts endorse the science, others question or downplay, with several neutral citations of the findings.
InterestNeutral interest
There is fleeting interest in the factual details (cell turnover, RBCs, gut epithelium) but many posts pivot to motivational or unrelated commentary rather than deep engagement with the study.
EngagementNeutral engagement
Engagement ranges from casual sharing and reposts to some analytical or corrective comments; few posts show sustained, in-depth discussion beyond highlighting facts.
ImpactNeutral impact
The perceived impact on everyday understanding varies: some see motivational potential or broad curiosity, while others treat it as a niche trivia topic with limited practical implications.
Abstract in brief
The study quantifies the daily turnover of different cell types in the human body, estimating a total turnover of about 8020 grams per day.
Blood cells and gut epithelial cells were identified as the primary contributors to this turnover.
Approximately 90% of the total cell turnover involves blood cells, highlighting their significance in overall cellular dynamics.
lemme plug one of my fav videos. ominous positivity is something i genuinely live by. i'm positive because i have no other choice. humans may have "started" this, but imagine what we could create instead? we have limitless potential and that excites me.
https://t.co/dQrLH9kfQ0
Oct 31, 2024 · 2,176 likes · 152 shares · 504 followersView post →
D
dranatomikrobiyoloji
@dranatomikro · X
"Bakın hiçbir doktor bunu böyle anlatmaz" mı?
Kardeş, esnaf mıyız biz?
Ablam gel geeel! Kimse sana böyle açıklamaz, ben açıklıyorum???
Böyle rezalet ve etikten yoksun bir girişle girdin de, bari açıkladıkların doğru olsa bee
Baştan sona zırva
Şimdi diyorsun ki:
"30 gün şeker https://t.co/Qkzaup7uWI
(Unsurprising) very low turnover of muscle cells compared to other cell types
https://t.co/CMH85dKD33
Jan 5, 2022 · 57 likes · 3 shares · 3,711 followersView post →
MN
Matthias Nahrendorf
@MatthiasNahrend · X
Fun facts re human body:
30 x 10^12 cells, 90% of which are hematopoietic
total turn over ~4 million cells/sec
major contributors to turnover: RBCs, neutrophils and intestinal epithelia
adipocytes, muscle cells and neurons get exceptionally old
https://t.co/w6XeE3RYwb https://t.co/hh7ePIu4LI
Quellen:
Zellregeneration: https://t.co/oALg4db21o
Foto: "The most detailed model of a human cell to date, obtained using x-ray, nuclear magnetic resonance, and cryoelectron microscopy datasets. Credit: Evan Ingersoll & Gael McGill – Digizyme’s Molecular Maya custom software"
Jun 16, 2022 · 17 likes · 6,623 followersView post →
A
Agingdoc
@agingdoc1 · X
The distribution of cellular turnover in the human body
https://t.co/LWnpLyDHhg
Jan 5, 2022 · 16 likes · 1 share · 41,452 followersView post →
Have you ever considered that much of our body's cellular makeup is constantly renewing? This video delves into the daily turnover of different cell types, estimating an astonishing 8020 grams per day, with blood cells…
This video explores the daily turnover of various cell types in the human body, emphasizing the significant role of blood cells and gut epithelial cells. Join us as we discuss how approximately 90% of total turnover…
A hypnic jerk is a common, usually harmless sleep transition. The brainstem toggles muscles as you drift to sleep, sometimes causing a sudden body jolt. Causes may include caffeine, stress, or fatigue, with uncertain…
A look at how bone marrow produces and replaces trillions of blood cells daily, driving the body’s cellular turnover. Grounded in Sender & Milo 2021, this video links turnover rates to overall body dynamics and the key…
Exploring what synthetic life means, how artificial cells are made, and the path from Miller–Urey experiments to 3D bioprinting, with a clear, research-backed overview and future outlook.
Many cells are ancient, some never replaced. Dating cells with bomb-pulse carbon shows brain neurons and eye lens core often predate life milestones, contradicting the 7-year body turnover idea.
A concise dive into daily cell turnover, highlighting blood cells and gut lining renewal, RBC lifespans, and bone remodeling, based on Sender & Milo 2021.
Debunking the myth of universal cell turnover and detailing who renews fastest. Blood and gut cells turn over rapidly; heart and brain cells mostly persist with age.
Nanoseconds of turnover show neurons largely persist, while other tissues renew on various schedules. Summary of Sender & Milo 2021 and related findings.
A structured breakdown: most cells renew daily, especially blood and gut; neurons and some brain regions largely stay; not all tissues turnover at the same rate.
New studies show infant memory exists earlier than once believed, with brain imaging indicating hippocampal activity predicting later recognition. The video discusses how early memories may persist.
An explainer of how carbon-14 dating applies to cell turnover: neurons versus other tissues, and the scale of daily replacement—grounded in 2021 research.
Explores how billions of cells coordinate to make a single self, with experiments on brain decision timing, cardiac cell coordination, and yeast death dynamics.
About 1% of cells turn over daily, yet many tissues maintain a long-term identity. Neurons and lens proteins often preserve birth-era marks, while other tissues renew at different rates.
Overview of red blood cell production, highlighting embryonic vs. adult erythropoiesis from distinct progenitors and sites. Describes development and differentiation steps to form hemoglobin-rich erythrocytes from…
Retrospective 14C dating reveals that most brain neurons in the occipital cortex are as old as you, while other tissues turnover at varying rates. Learn how carbon-14 dating of DNA tracks cell birth and why some parts…
14C dating shows that cortical neurons age with you, while many tissues renew rapidly. Explore how carbon-14 in DNA marks cell birth and why the brain’s cortex and eye lens differ in age.
Explores creatures that resist aging, from jellyfish to hydra and planaria. Discusses aging, death, and the limits of “rejuvenation,” linking research on immortality to the biology of aging and repair.
An estimated 30 trillion cells in a 70 kg adult, with 84% red blood cells. The brain’s cell counts align with primates: about 86.1 billion neurons and 84.6 billion nonneuronal cells, indicating a scaled primate brain…
Explains how distant recurrence risk for ER-positive breast cancer persists from year 5 to 20 after stopping endocrine therapy, with risk shaped by initial tumor–nodal status and varying slightly by tumor…
New evidence shows adult human hearts renew cardiomyocytes, with turnover declining from ~1%/year at 25 to ~0.45% at 75, and less than half of heart cells exchanged in a lifetime. Explore implications for therapy to…
From waking to sleep, your body runs complex processes automatically. This video traces how your heart, stomach, and brain work together through a typical day.
No. The carbon-14 spike from 1950s–60s nuclear tests lets scientists date cells. Neurons in the cortex are as old as you are; gut lining renews in days; and other tissues show distinct turnover patterns.
An energy-saving strategy that reduces error regulation in body cells may explain aging, linking it to evolutionary trade-offs and cancer protection. Explore how cellular errors accumulate when regulation is relaxed…
Explores how limited inter-group connectivity among chimpanzee subspecies influenced the step-by-step evolution of cultural practices, shedding light on how social movement affects cultural exchange in primates.
Nearly four million cells are replaced inside your body every second. Behind that relentless renewal is a microscopic operation with almost zero room for error. Scientists thought they understood the machinery. For decades, something escaped them. https://t.co/385XRLTQTt
Oct 16, 2026 · 2 likes · 1 share · 497 followersView post →
CA
Climate, Ecology, War & More: Dr. Glen Barry BigEarthData.ai
@bigearthdata.ai · Bluesky
Written in development and lost in ageing: the grammar of cellular identity
->Nature | More on "Cellular aging and identity development" at BigEarthData.ai
✍? *पोस्ट 14 | 28 सितम्बर '26*
? *विषय — विज्ञान*
*─────────*
@Advait_Prashant
@Prashant_Advait
? *10 साल में आपका शरीर कितना बदल जाता है?*
हम आमतौर पर शरीर को एक ऐसी चीज़ समझते हैं जिसकी एक उम्र होती है। “मैं फलाने साल का हूँ।” लेकिन शरीर के भीतर जाएँ, तो कहानी https://t.co/b9Whk2dyf9
Sources & Notes:
Source: Sender R, Milo R. "The distribution of cellular turnover in the human body." Nature Medicine 2021;27:45-48: https://t.co/6llX6QfWsC
Measured: total turnover 0.33 trillion (330 billion) cells per day, about 80 grams of cell mass daily. Blood cells are https://t.co/8ErSQDR620
Aug 16, 2026 · 4 likes · 1 share · 13,382 followersView post →
TD
Tyler Lawton Ph.D.
@tylerlawtonphd · X
@AlpacaAurelius They sure do.
"The distribution of cellular turnover in the human body"
Ron Sender and Ron Milo https://t.co/pvAq8cJAWl
"Bakın hiçbir doktor bunu böyle anlatmaz" mı?
Kardeş, esnaf mıyız biz?
Ablam gel geeel! Kimse sana böyle açıklamaz, ben açıklıyorum???
Böyle rezalet ve etikten yoksun bir girişle girdin de, bari açıkladıkların doğru olsa bee
Baştan sona zırva
Şimdi diyorsun ki:
"30 gün şeker https://t.co/Qkzaup7uWI
Cada 7 a 10 años, obtienes un cuerpo nuevo, con nuevos órganos y tejidos. Tu estómago se regenera cada 4 días. Las células estomacales que ayudan a digerir los alimentos se reemplazan cada 5 minutos.
DOI: 10.1038/s41591-020-01182-9
Te explicamos:
https://t.co/IK03FCdsfX https://t.co/v5yeYyL7tj
Cada 7 a 10 años, obtienes un cuerpo completamente nuevo, con nuevos órganos y tejidos. Tu estómago se regenera cada 4 días. Las células estomacales que ayudan a digerir los alimentos se reemplazan cada 5 minutos.
DOI: 10.1038/s41591-020-01182-9
Te explicamos aquí:
cerebrodigital.net/cuerpo-h...
Cada 7 a 10 años, obtienes un cuerpo completamente nuevo, con nuevos órganos y tejidos. Tu estómago se regenera cada 4 días. Las células estomacales que ayudan a digerir los alimentos se reemplazan.
DOI: 10.1038/s41591-020-01182-9
Te explicamos:
https://t.co/IK03FCdsfX https://t.co/lhfweuZFDJ
Jan 18, 2026 · 1 like · 6,815 followersView post →
CD
Cerebro Digital
@cerebrodigital.net · Bluesky
Cada 7 a 10 años, obtienes un cuerpo completamente nuevo, con nuevos órganos y tejidos. Tu estómago se regenera cada 4 días. Las células estomacales que ayudan a digerir los alimentos se reemplazan.
DOI: 10.1038/s41591-020-01182-9
Te explicamos:
cerebrodigital.net/cuerpo-h...
“We Are What We Eat” – Consciousness Meets Biochemistry
For a long time, the phrase “We are what we think” was considered an expression of psychological truth. Indeed, research and experience show that our thoughts, beliefs, and self-perceptions shape our behavior, emotions, and https://t.co/cT8GxOSR3M
Nov 2, 2025 · 2 likes · 1 share · 3,983 followersView post →
H
heartpunk
@heartpunkk · X
(ofc in other senses there are always problems that are insoluble and always will be; elliot sang cites a good distinction between these two in his ominous positivity video; i’ll elaborate on the senses below. they’re from a zen master he quotes.
https://t.co/ekRhkMmvql
Aug 14, 2025 · 1 like · 1,150 followersView post →
You’re not the same person you were 10 minutes ago. Your body is constantly regenerating itself. New cells are made, and old ones are discarded.
more:
https://t.co/sJ8eplFDdR https://t.co/NaN2gsgN42
https://t.co/N9lAiEpCPD
#BreakingNews #Human #Medical https://t.co/ASUQAE0hyW
@Jqmping1 i was lowkey just gonna post the 'please dont bully me' wojak but i also want to be helpful so watch this https://t.co/Nma12Ml5Cg
the 22 minutes will be worth it
ominous positivity is more important than ever. i refuse to engage in doomerism, even if i am scared.
you will be okay, you have to be.
youtu.be/tq_nCR7m3PY?...
Don’t cell yourself short!
Source: Sender, R., Milo, R. The distribution of cellular turnover in the human body. Nat Med 27, 45–48 (2021). https://t.co/oWonAizD4V
#health #facts #science #didyouknow #medicine #funfacts #medical #human #biology #humanbody #humanfacts #chemistry https://t.co/bewd0oxtWh
This is great video that I've been keeping to long before this night. And I'd ask you to give it a shot.
You will be okay; you have no choice.
youtu.be/tq_nCR7m3PY
This is great video that I've been keeping to long before this night. And I'd ask you to give it a shot.
You will be okay; you have no choice.
https://t.co/9f3BUOHoNX
Nov 6, 2024 · 16 likes · 5,622 followersView post →
NS
NRG sera
@seralux · X
@imsalsay Happy birthday miss u ?. This video made me feel better https://t.co/WhWCTGgDPR
https://t.co/lA4xjMpRRq
After all the preachy positivity and optimism that feels uncomfortable in the face of crisis or struggles both inner and outer, this seemed like a fresh perspective to things.
lemme plug one of my fav videos. ominous positivity is something i genuinely live by. i'm positive because i have no other choice. humans may have "started" this, but imagine what we could create instead? we have limitless potential and that excites me.
https://t.co/dQrLH9kfQ0
Oct 31, 2024 · 2,176 likes · 152 shares · 504 followersView post →
M
milena ⋆。° ✩
@ladybugd0ts · X
@oddis0dd watch this, maybe it will bring you some peace!!!
https://t.co/Lwk6qNTkf7
You Will Be Okay. You Have No Choice. https://t.co/g8bgmjmfmR via @YouTube
Mar 1, 2024 · 2 likes · 10,079 followersView post →
S
sam
@dismantledcake · X
i was watching this commentary earlier. although it came to me differently, we came to the same conclusions. hope is something i continue to cultivate in my life. RIP Aaron Bushnell
https://t.co/lsANzyYvXF
You're off by a few orders of magnitude. It's around 300 billion (yes, with a 'b') per day. That's about 80g/day, mostly blood cells: www.nature.com/articles/s41...
@CelesteFinally I found this video from Elliot Sang weirdly helpful on this very point. Since watching it, I keep thinking, “I choose hope.”
https://t.co/3gw9lNTBk1
@itsminaploy ใน essay ที่ฟัง จริง ๆ ประโยคนี้เค้าตีความด้วยว่า ชีวิตคนเรามีขึ้นมีลง ดังนั้น You will eventually be okay at the end too.
https://t.co/AZW6hLQrmL
Just finished watching @elliotsayhello 's video on ominous positivity
Feeling galvanized to really get the plans for my "UBI soup cafe library music therapeutic horticulture geothermal solarpunk 3rd space makerspace" into high gear ??
go watch!
https://t.co/C354Ds3hjc
The distribution of cellular turnover in the human body
https://t.co/oshscvGnxZ
Feb 16, 2023 · 1 like · 3,961 followersView post →
KV
Kenneth Verboven
@KennethVerboven · X
#Adiposetissue
Feb 12, 2023 · 6 likes · 1 share · 478 followersView post →
ジ休
ジャム納豆【休憩中】
@Bora_Soumen · X
RT @DrKimEBarrett: Gut epithelial cells are a significant part of daily turnover. The distribution of cellular turnover in the human body…
Feb 12, 2023 · 3 shares · 100 followersView post →
UC
UC Davis Stem Cell
@UCDavisStemCell · X
RT @DrKimEBarrett: Gut epithelial cells are a significant part of daily turnover. The distribution of cellular turnover in the human body…
Feb 12, 2023 · 3 shares · 6,255 followersView post →
LM
Luke McIlvenna
@LukeMcIlvenna · X
RT @DrKimEBarrett: Gut epithelial cells are a significant part of daily turnover. The distribution of cellular turnover in the human body…
Feb 11, 2023 · 3 shares · 1,160 followersView post →
DB
Dr. Kim E. Barrett
@DrKimEBarrett · X
Gut epithelial cells are a significant part of daily turnover. The distribution of cellular turnover in the human body | Nature Medicine https://t.co/MpErZ6i1pQ
Feb 11, 2023 · 9 likes · 3 shares · 6,499 followersView post →
I
Imad
@Imade_kun · X
Kita Semua Sebenarnya Udah 'Mati'
https://t.co/kugqFXZhS8
@titiatscriptor Paywalls are frustrating! Access the article from your library: https://t.co/2KzjPV6bvZ
Promote scholarly access when tweeting articles by simply adding https://t.co/SXSePSX5De to the DOI URL
Quellen:
Zellregeneration: https://t.co/oALg4db21o
Foto: "The most detailed model of a human cell to date, obtained using x-ray, nuclear magnetic resonance, and cryoelectron microscopy datasets. Credit: Evan Ingersoll & Gael McGill – Digizyme’s Molecular Maya custom software"
Jun 16, 2022 · 17 likes · 6,623 followersView post →
PR
Pelo Rojo
@Mujerverdosa · X
RT @MiloLabWIS: 1/ How long does it take for our body to replace its cells? “The Distribution of Cellular Turnover in the Human Body” prese…
Mar 28, 2022 · 124 shares · 554 followersView post →
CS
Carlos Sepulveda
@carlosepulvedag · X
RT @AbigailMackey1: (Unsurprising) very low turnover of muscle cells compared to other cell types
https://t.co/CMH85dKD33
RT @agingdoc1: The distribution of cellular turnover in the human body
https://t.co/LWnpLyDHhg
Jan 5, 2022 · 1 share · 5,266 followersView post →
KD
Kelly A. Hogan Ph.D.
@Loose_Lab_Rat · X
The distribution of cellular turnover in the human body
(Ed: Another fun calculation to do—distribution of cell turnover in the gravid vs non-gravid female!!) https://t.co/qYioAn3T0C
(Unsurprising) very low turnover of muscle cells compared to other cell types
https://t.co/CMH85dKD33
Jan 5, 2022 · 57 likes · 3 shares · 3,711 followersView post →
N
ning
@notningyuan · X
TIL of Voronoi diagrams (for data viz), which could be a much prettier way to represent proportions than the cliched pie chart
Also, most cellular turnover original from gut epithelia and blood:
https://t.co/4K8IAt8Sdh https://t.co/40BsCxbcHa
Although red blood cells have a longer half-life than the epithelial cells of the intestine, given their large number, they contribute with more cells.
Ref: DOI: 10.1038/s41591-020-01182-9
Fun facts re human body:
30 x 10^12 cells, 90% of which are hematopoietic
total turn over ~4 million cells/sec
major contributors to turnover: RBCs, neutrophils and intestinal epithelia
adipocytes, muscle cells and neurons get exceptionally old
https://t.co/w6XeE3RYwb https://t.co/hh7ePIu4LI
@JoyYWu @NatureMedicine This is beautiful. BTW, the DOI of the original article is https://t.co/65hbXUTYgc.
Jan 18, 2021 · 3 likes · 1 share · 1,148 followersView post →
L
LibKey
@libkey_io · X
@dawso007 Access the paywalled article from your library: https://t.co/2KzjPV6bvZ
Promote scholarly access to content by simply adding https://t.co/SXSePSX5De in front of any DOI
A favorite topic of mine (see fig 1 & 2 and the extended data):
Sender, R., Milo, R. The distribution of cellular turnover in the human body. Nat Med 27, 45–48 (2021). https://t.co/hwfvy7twd8
Jan 17, 2021 · 2 likes · 7,820 followersView post →
LS
Leandro Steinberg
@lean_stein · X
RT @alinkmd: Three hundred thirty billion human cells are replaced daily! (3 300 000 000 00)
Among those: 12% (~forty billion) are the gas…
Three hundred thirty billion human cells are replaced daily! (3 300 000 000 00)
Among those: 12% (~forty billion) are the gastrointestinal epithelial cells!
Well done #GITract!
https://t.co/cgaoG0WhwL https://t.co/j3y4mj6m0D
Jan 15, 2021 · 4 likes · 1 share · 1,432 followersView post →
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अद्वैत राजा (@raja.kumar.676671) • Facebook
Facebook
... s41591-020-01182-9 “Cell Turnover and Aging” — NCBI https://www.ncbi.nlm.nih ... 10.1038/nature06902 Bone Remodeling — NIAMS https://www.niams.nih.gov ...
... 10.1038/s41591-020-01182-9[2] Ron Sender et al., (2016) Revised Estimates for the Number of Human and Bacteria Cells in the Body. Plos Biology. Doi: https ...