Sean Mullen, Ph.D.
@drseanmullen.bsky.social
Research Director of the #Exercise #Technology & #Cognition Lab | #Movement #Neuroscience | Husband | Dad | #MartialArtist | #FlowArtist | #Tennis Teaching Pro | Advocate for Persons with Long Covid
Pinned
I always wondered what it was like for scientists trying to pull the curtain down to expose AIDS or that tobacco causes cancer.
This is it. We’re living in truly wild times.
This is it. We’re living in truly wild times.
I wish you all a safe, healthy & joyful holiday season.
See you in 2026!
See you in 2026!
a man says merry christmas behind a broken window
Alt: a man says merry christmas behind a broken window
media.tenor.com
December 24, 2025 at 2:08 PM
I wish you all a safe, healthy & joyful holiday season.
See you in 2026!
See you in 2026!
“Some parents took to social media to express concern about a universal mask ban.”
Guilt as charged.
Because it would have unconscionable & deliberate, debilitating harm.
Illegal. Discriminatory.
Ableist. Profiling.
Hundreds of people contacted me about legal action.
96K views & counting.
Guilt as charged.
Because it would have unconscionable & deliberate, debilitating harm.
Illegal. Discriminatory.
Ableist. Profiling.
Hundreds of people contacted me about legal action.
96K views & counting.
December 19, 2025 at 3:34 PM
“Some parents took to social media to express concern about a universal mask ban.”
Guilt as charged.
Because it would have unconscionable & deliberate, debilitating harm.
Illegal. Discriminatory.
Ableist. Profiling.
Hundreds of people contacted me about legal action.
96K views & counting.
Guilt as charged.
Because it would have unconscionable & deliberate, debilitating harm.
Illegal. Discriminatory.
Ableist. Profiling.
Hundreds of people contacted me about legal action.
96K views & counting.
@wcia3news.bsky.social you reported that Unit4 was NOT going to ban medical masks, yet “surgical” (recently shown to ⬇️ infection risk 54%) are medical 😷 Why would the policy be DATED 12/16? Clearly the email was intended. It would have been instated without push back.
youtu.be/67oNqgyNCCs?...
youtu.be/67oNqgyNCCs?...
December 19, 2025 at 3:23 PM
@wcia3news.bsky.social you reported that Unit4 was NOT going to ban medical masks, yet “surgical” (recently shown to ⬇️ infection risk 54%) are medical 😷 Why would the policy be DATED 12/16? Clearly the email was intended. It would have been instated without push back.
youtu.be/67oNqgyNCCs?...
youtu.be/67oNqgyNCCs?...
Repeat after me:
I will wear a N95 respirator as I travel in shared indoor spaces (healthcare facilities, airports, public restrooms, mall, etc)
I will not visit anyone upon feeling ANY symptoms indicating possible infection (e.g., tiredness, headache).
I will test.
Air purifiers are my friend.
I will wear a N95 respirator as I travel in shared indoor spaces (healthcare facilities, airports, public restrooms, mall, etc)
I will not visit anyone upon feeling ANY symptoms indicating possible infection (e.g., tiredness, headache).
I will test.
Air purifiers are my friend.
December 19, 2025 at 1:11 PM
Repeat after me:
I will wear a N95 respirator as I travel in shared indoor spaces (healthcare facilities, airports, public restrooms, mall, etc)
I will not visit anyone upon feeling ANY symptoms indicating possible infection (e.g., tiredness, headache).
I will test.
Air purifiers are my friend.
I will wear a N95 respirator as I travel in shared indoor spaces (healthcare facilities, airports, public restrooms, mall, etc)
I will not visit anyone upon feeling ANY symptoms indicating possible infection (e.g., tiredness, headache).
I will test.
Air purifiers are my friend.
🎄 Happy holidays. Sorry to ruin the vibes.
+1.5 MILLION disabled adults in two months.
Entering year 7
In the 12th wave.
Disability is accumulating because infection is accumulating.
You can pretend it’s over.
The labor force, healthcare system, and your brain do not agree.
+1.5 MILLION disabled adults in two months.
Entering year 7
In the 12th wave.
Disability is accumulating because infection is accumulating.
You can pretend it’s over.
The labor force, healthcare system, and your brain do not agree.
December 19, 2025 at 11:51 AM
🎄 Happy holidays. Sorry to ruin the vibes.
+1.5 MILLION disabled adults in two months.
Entering year 7
In the 12th wave.
Disability is accumulating because infection is accumulating.
You can pretend it’s over.
The labor force, healthcare system, and your brain do not agree.
+1.5 MILLION disabled adults in two months.
Entering year 7
In the 12th wave.
Disability is accumulating because infection is accumulating.
You can pretend it’s over.
The labor force, healthcare system, and your brain do not agree.
Anyone who isn’t masking & using air purifiers in classrooms is a child killer.
These people are literal baby killers
The CDC officially adopted ACIP recommendations to change the universal hepatitis B vaccine at birth; the agency says it will still be available through Vaccines for Children. They're still reviewing the rec on blood testing.
December 16, 2025 at 11:33 PM
Anyone who isn’t masking & using air purifiers in classrooms is a child killer.
Reposted by Sean Mullen, Ph.D.
🤔🧵 by @drseanmullen.bsky.social
"🥋 THE PARABLE OF FEAR: FALSE EVIDENCE APPEARING REAL
(A Zen Story for a World Losing Its Mind)
A young student once approached the Old Master at dawn, trembling..."
Full 🧵
threadreaderapp.com/thread/19992...
"🥋 THE PARABLE OF FEAR: FALSE EVIDENCE APPEARING REAL
(A Zen Story for a World Losing Its Mind)
A young student once approached the Old Master at dawn, trembling..."
Full 🧵
threadreaderapp.com/thread/19992...
December 12, 2025 at 2:21 AM
🤔🧵 by @drseanmullen.bsky.social
"🥋 THE PARABLE OF FEAR: FALSE EVIDENCE APPEARING REAL
(A Zen Story for a World Losing Its Mind)
A young student once approached the Old Master at dawn, trembling..."
Full 🧵
threadreaderapp.com/thread/19992...
"🥋 THE PARABLE OF FEAR: FALSE EVIDENCE APPEARING REAL
(A Zen Story for a World Losing Its Mind)
A young student once approached the Old Master at dawn, trembling..."
Full 🧵
threadreaderapp.com/thread/19992...
Reposted by Sean Mullen, Ph.D.
𝙏𝙝𝙚 𝙢𝙤𝙨𝙩 𝙧𝙞𝙜𝙤𝙧𝙤𝙪𝙨 𝙨𝙩𝙪𝙙𝙮 𝙮𝙚𝙩: 𝙨𝙝𝙖𝙧𝙚𝙙 𝙖𝙞𝙧—𝙣𝙤𝙩 𝙨𝙪𝙧𝙛𝙖𝙘𝙚𝙨, 𝙣𝙤𝙩 𝙚𝙫𝙚𝙣 𝙘𝙡𝙤𝙨𝙚 𝙥𝙧𝙤𝙭𝙞𝙢𝙞𝙩𝙮—𝙙𝙧𝙞𝙫𝙚𝙨 𝙩𝙧𝙖𝙣𝙨𝙢𝙞𝙨𝙨𝙞𝙤𝙣!
HT @drseanmullen.bsky.social
Combining genomic sequencing, CO₂ monitoring, and proximity sensors, most rigorous study yet!
@danielmwoodruff.bsky.social #IAQ #flu #RSV
www.nature.com/articles/s41...
HT @drseanmullen.bsky.social
Combining genomic sequencing, CO₂ monitoring, and proximity sensors, most rigorous study yet!
@danielmwoodruff.bsky.social #IAQ #flu #RSV
www.nature.com/articles/s41...
The relative contribution of close-proximity contacts, shared classroom exposure and indoor air quality to respiratory virus transmission in schools - Nature Communications
The relative importance of close-proximity interactions, shared space and air quality to the transmission of respiratory viruses is not well understood. Here, the authors investigate this question by ...
www.nature.com
December 5, 2025 at 3:07 PM
𝙏𝙝𝙚 𝙢𝙤𝙨𝙩 𝙧𝙞𝙜𝙤𝙧𝙤𝙪𝙨 𝙨𝙩𝙪𝙙𝙮 𝙮𝙚𝙩: 𝙨𝙝𝙖𝙧𝙚𝙙 𝙖𝙞𝙧—𝙣𝙤𝙩 𝙨𝙪𝙧𝙛𝙖𝙘𝙚𝙨, 𝙣𝙤𝙩 𝙚𝙫𝙚𝙣 𝙘𝙡𝙤𝙨𝙚 𝙥𝙧𝙤𝙭𝙞𝙢𝙞𝙩𝙮—𝙙𝙧𝙞𝙫𝙚𝙨 𝙩𝙧𝙖𝙣𝙨𝙢𝙞𝙨𝙨𝙞𝙤𝙣!
HT @drseanmullen.bsky.social
Combining genomic sequencing, CO₂ monitoring, and proximity sensors, most rigorous study yet!
@danielmwoodruff.bsky.social #IAQ #flu #RSV
www.nature.com/articles/s41...
HT @drseanmullen.bsky.social
Combining genomic sequencing, CO₂ monitoring, and proximity sensors, most rigorous study yet!
@danielmwoodruff.bsky.social #IAQ #flu #RSV
www.nature.com/articles/s41...
Fun fact:
No one’s going to test before your holiday gathering.
Not for Covid.
Not for Flu.
Not for RSV.
But you could. You could show them how it’s done.
No one’s going to test before your holiday gathering.
Not for Covid.
Not for Flu.
Not for RSV.
But you could. You could show them how it’s done.
November 24, 2025 at 3:43 PM
Fun fact:
No one’s going to test before your holiday gathering.
Not for Covid.
Not for Flu.
Not for RSV.
But you could. You could show them how it’s done.
No one’s going to test before your holiday gathering.
Not for Covid.
Not for Flu.
Not for RSV.
But you could. You could show them how it’s done.
Reposted by Sean Mullen, Ph.D.
🙋♂️ Just curious… At what point are academics going to start masking/demanding air purifiers?
How do you reconcile your job as one that teaches students to think while simultaneously causing permanent damage to brains and inability to think?
60% of transmission is pre/asymptomatic.
ITS AIRBORNE!
How do you reconcile your job as one that teaches students to think while simultaneously causing permanent damage to brains and inability to think?
60% of transmission is pre/asymptomatic.
ITS AIRBORNE!
The persistence of #LongCovid at 2 years in a prospective cohort of ~1,000 affected individuals with matched controls, with multi-system objective assessments including cognitive testing, lung function, and exercise capacity
journals.plos.org/plosmedicine... open-access
journals.plos.org/plosmedicine... open-access
Persistent symptoms and clinical findings in adults with post-acute sequelae of COVID-19/post-COVID-19 syndrome in the second year after acute infection: A population-based, nested case-control study
In a population-based case-control study, Raphael Peter and colleagues investigate the clinical characteristics and diagnostic findings in patients with post-COVID-19 syndrome.
journals.plos.org
January 23, 2025 at 8:22 PM
🙋♂️ Just curious… At what point are academics going to start masking/demanding air purifiers?
How do you reconcile your job as one that teaches students to think while simultaneously causing permanent damage to brains and inability to think?
60% of transmission is pre/asymptomatic.
ITS AIRBORNE!
How do you reconcile your job as one that teaches students to think while simultaneously causing permanent damage to brains and inability to think?
60% of transmission is pre/asymptomatic.
ITS AIRBORNE!
Reposted by Sean Mullen, Ph.D.
What’s up BlueSkyers?
Like this if you still care about your brain and avoiding early onset disease from a disabling airborne pathogen…
In other words, like this if you are still wearing a mask every day.
Like this if you still care about your brain and avoiding early onset disease from a disabling airborne pathogen…
In other words, like this if you are still wearing a mask every day.
April 11, 2025 at 2:01 AM
What’s up BlueSkyers?
Like this if you still care about your brain and avoiding early onset disease from a disabling airborne pathogen…
In other words, like this if you are still wearing a mask every day.
Like this if you still care about your brain and avoiding early onset disease from a disabling airborne pathogen…
In other words, like this if you are still wearing a mask every day.
Operation Silence 🤫
zona.vision-innovations.com/song/393f28b...
zona.vision-innovations.com/song/393f28b...
Operation Silence
How to erase a pandemic:
Step 1 — tell the Left the vaccine ends it.
Step 2 — tell the Right the vaccine IS it.
Step 3 — sit back and relax while they tear each
zona.vision-innovations.com
November 23, 2025 at 5:23 PM
Operation Silence 🤫
zona.vision-innovations.com/song/393f28b...
zona.vision-innovations.com/song/393f28b...
Reposted by Sean Mullen, Ph.D.
Say it loud, say it true—
Decorum died when we stopped calling out what he do.
🧵👇🎶🎤
Decorum died when we stopped calling out what he do.
🧵👇🎶🎤
November 19, 2025 at 12:22 PM
Say it loud, say it true—
Decorum died when we stopped calling out what he do.
🧵👇🎶🎤
Decorum died when we stopped calling out what he do.
🧵👇🎶🎤
Reposted by Sean Mullen, Ph.D.
🚨🧵 by @1goodtern.bsky.social about Covid & eye problems:
"Eye problems are one of the most common after-effects of covid infections, and one of the most common issues of Long Covid - but they're not talked about much"
100-tweet 🧵(yep, that's the count from TR):
threadreaderapp.com/thread/19904...
"Eye problems are one of the most common after-effects of covid infections, and one of the most common issues of Long Covid - but they're not talked about much"
100-tweet 🧵(yep, that's the count from TR):
threadreaderapp.com/thread/19904...
November 17, 2025 at 11:20 PM
🚨🧵 by @1goodtern.bsky.social about Covid & eye problems:
"Eye problems are one of the most common after-effects of covid infections, and one of the most common issues of Long Covid - but they're not talked about much"
100-tweet 🧵(yep, that's the count from TR):
threadreaderapp.com/thread/19904...
"Eye problems are one of the most common after-effects of covid infections, and one of the most common issues of Long Covid - but they're not talked about much"
100-tweet 🧵(yep, that's the count from TR):
threadreaderapp.com/thread/19904...
Masking makes sense. SARS-CoV-2 can persist, and new evidence from France shows infected megakaryocytes + platelets — meaning real blood involvement. This virus isn’t just respiratory, and protecting your air protects your blood.
Don’t know anything about viral persistence? Know that it’s the norm👇
Don’t know anything about viral persistence? Know that it’s the norm👇
"No man is an island, entire of itself."
John Donne
For me, choosing to wear a respirator mask in all public spaces signifies an awareness of my connection to the human community, whose collective well-being is grievously threatened by the ongoing pandemic of Covid-19.
#COVID19 #respirator
John Donne
For me, choosing to wear a respirator mask in all public spaces signifies an awareness of my connection to the human community, whose collective well-being is grievously threatened by the ongoing pandemic of Covid-19.
#COVID19 #respirator
November 16, 2025 at 8:19 PM
Masking makes sense. SARS-CoV-2 can persist, and new evidence from France shows infected megakaryocytes + platelets — meaning real blood involvement. This virus isn’t just respiratory, and protecting your air protects your blood.
Don’t know anything about viral persistence? Know that it’s the norm👇
Don’t know anything about viral persistence? Know that it’s the norm👇
Reposted by Sean Mullen, Ph.D.
🎯🧵 by @drseanmullen.bsky.social that I didn't see posted here yet: a Covid biomarker checklist 🚨
Check "If you have any of these:
•PLT > 450k
•MPV > 11.5
•D-dimer > 0.50 (especially >1.0)
•Fibrinogen > 400
•CRP > 10
•Ferritin high for sex
•VWF > 150% ..."
Full 🧵
threadreaderapp.com/thread/19896...
Check "If you have any of these:
•PLT > 450k
•MPV > 11.5
•D-dimer > 0.50 (especially >1.0)
•Fibrinogen > 400
•CRP > 10
•Ferritin high for sex
•VWF > 150% ..."
Full 🧵
threadreaderapp.com/thread/19896...
November 16, 2025 at 4:00 AM
🎯🧵 by @drseanmullen.bsky.social that I didn't see posted here yet: a Covid biomarker checklist 🚨
Check "If you have any of these:
•PLT > 450k
•MPV > 11.5
•D-dimer > 0.50 (especially >1.0)
•Fibrinogen > 400
•CRP > 10
•Ferritin high for sex
•VWF > 150% ..."
Full 🧵
threadreaderapp.com/thread/19896...
Check "If you have any of these:
•PLT > 450k
•MPV > 11.5
•D-dimer > 0.50 (especially >1.0)
•Fibrinogen > 400
•CRP > 10
•Ferritin high for sex
•VWF > 150% ..."
Full 🧵
threadreaderapp.com/thread/19896...
Reposted by Sean Mullen, Ph.D.
I am convinced most of our supposed Health leaders are going to be remembered as ghoulish people who wrote off the young, other abled, and elderly. all for brunch. when all we all needed to do was work together for a bit longer...but no. Brunch
November 15, 2025 at 11:06 PM
I am convinced most of our supposed Health leaders are going to be remembered as ghoulish people who wrote off the young, other abled, and elderly. all for brunch. when all we all needed to do was work together for a bit longer...but no. Brunch
I hope you will read along with me… the writing of someone who doesn’t self-promote, who has insights that cut through like a knife to truth.
Thank you for the kind words, Sean. Unfortunately, in four decades of writing I failed to get a book of my own published, but many pieces of my writing, both fiction and nonfiction, are available here:
mcollinsmorton.blogspot.com
mcollinsmorton.blogspot.com
Michael Collins Morton
Varied examples from a lifetime of writing
mcollinsmorton.blogspot.com
November 16, 2025 at 12:05 AM
I hope you will read along with me… the writing of someone who doesn’t self-promote, who has insights that cut through like a knife to truth.
Reposted by Sean Mullen, Ph.D.
We all get fooled sometimes. It's life. Character is built on what you do when you find out about it. Do you deny it and continue the lie or do you grow as a human and just admit you got fooled.
November 15, 2025 at 7:07 PM
We all get fooled sometimes. It's life. Character is built on what you do when you find out about it. Do you deny it and continue the lie or do you grow as a human and just admit you got fooled.
Is there a book like White Fragility…
but about American adults and the air they breathe?
Because someone needs to write the book on why a nation that buys air fryers, air fresheners, air purifiers, scented candles, and aromatherapy oils…
won’t fight for clean air that keeps their children alive.
but about American adults and the air they breathe?
Because someone needs to write the book on why a nation that buys air fryers, air fresheners, air purifiers, scented candles, and aromatherapy oils…
won’t fight for clean air that keeps their children alive.
November 15, 2025 at 6:09 PM
Is there a book like White Fragility…
but about American adults and the air they breathe?
Because someone needs to write the book on why a nation that buys air fryers, air fresheners, air purifiers, scented candles, and aromatherapy oils…
won’t fight for clean air that keeps their children alive.
but about American adults and the air they breathe?
Because someone needs to write the book on why a nation that buys air fryers, air fresheners, air purifiers, scented candles, and aromatherapy oils…
won’t fight for clean air that keeps their children alive.
🧵 If you voted for Bill Clinton, and if he truly was abusing minors, that doesn’t mean you were a pedophile.
It means you were duped.
That’s how propaganda works.
It means you were duped.
That’s how propaganda works.
November 15, 2025 at 4:42 PM
🧵 If you voted for Bill Clinton, and if he truly was abusing minors, that doesn’t mean you were a pedophile.
It means you were duped.
That’s how propaganda works.
It means you were duped.
That’s how propaganda works.