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Asaf (Klaf) Weisman

@asafklaf.bsky.social
1.1K followers 3.1K following 182 posts

PhD candidate at Tel-Aviv University. I am a researcher of the spine and people experiencing pain. I am also an MSK Physiotherapist. Follow me for the neuroscience of pain, spine, and health issues. Blog: painlosophy.wordpress.com

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Asaf (Klaf) Weisman @asafklaf.bsky.social · 10/05/2026
A new blog on our study, which was published last year in PeerJ, and why it KILLED all the psychologically-based interventions for pain, including "Pain Reprocessing Therapy." YES, It KILLED those approaches! #painscience #painresearch painlosophy.wordpress.com/2026/05/10/s...
painlosophy.wordpress.com
Special Pleading for Dead Psychological Theories of Pain
By: Asaf Weisman I am probably among the most educated people about pain in the world. Thirty years of fibromyalgia. Deep familiarity with pain neuroscience, mindfulness, and the whole theoretical …
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Asaf (Klaf) Weisman @asafklaf.bsky.social · 07/05/2026
New blog on the nonsense that is “Pain Reprocessing Therapy” by Drs. Quintner and Cohen painlosophy.wordpress.com/2026/05/07/p...
painlosophy.wordpress.com
Pain Reprocessing Therapy is based on mythology, not science
By: Drs. Milton Cohen and John Quintner A basic Google AI search for “pain reprocessing therapy” (“PRT”) finds it described as “an evidence-based psychological treatment designed to eliminate chron…
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Asaf (Klaf) Weisman @asafklaf.bsky.social · 02/04/2026
I guess you haven’t heard that he fabricated his cases in his books. Link: www.newyorker.com/magazine/202...
newyorker.com
Oliver Sacks Put Himself Into His Case Studies. What Was the Cost?
The scientist was famous for linking healing with storytelling. Sometimes that meant reshaping patients’ reality.
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Asaf (Klaf) Weisman @asafklaf.bsky.social · 07/12/2025
A new blog about our recent three publications on the Nociceptive Apparatus Paradigm #painresearch #physio #neuroskyence painlosophy.wordpress.com/2025/12/06/t...
painlosophy.wordpress.com
Triad – Three papers that point to a new paradigm
By: Milton Cohen, John Quintner, and Asaf Weisman We present a triad of our recent papers that we believe hold a key to breaking the stalemate theoretical position that the science and practice of …
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Asaf (Klaf) Weisman @asafklaf.bsky.social · 11/11/2025
💥Interesting new study indicates that multilevel abnormalities in Lumbar MRI correlate with an inflammatory phenotype of low back pain. #painresearch #neuroskyence #physio Open access: link.springer.com/article/10.1...
link.springer.com
Association between MRI findings and inflammatory symptoms in non-specific chronic low back pain - European Spine Journal
European Spine Journal - Non-specific chronic low back pain (nsCLBP) likely constitutes a heterogeneous group of conditions, and identifying an inflammatory phenotype may improve treatment...
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Asaf (Klaf) Weisman @asafklaf.bsky.social · 20/10/2025
This new prospective study followed 108 individuals with acute low back pain. Their immune profiles predicted transition from acute to chronic low back pain in a sex- and age-specific manner with some pretty impressive AUCs. journals.lww.com/pain/abstrac... #neuroskyence #painresearch #physio
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Asaf (Klaf) Weisman @asafklaf.bsky.social · 16/10/2025
Potential and actual tissue damage are encoded the same. Both qualify as nociception. It is an ingenious evolutionary adaptation that is meant to protect us way before actual damage occurs.
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Asaf (Klaf) Weisman @asafklaf.bsky.social · 16/10/2025
Pinch yourself slightly hard and you will likely feel pain due to potential tissue damage.
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Asaf (Klaf) Weisman @asafklaf.bsky.social · 15/10/2025
Officially published💥 A reboot to the #pain field! The aphorism that “nociception is neither necessary nor sufficient for pain” has caused a lot of damage to patients and set back the field and should be discarded. #neuroskyence #painresearch #physio Free link: academic.oup.com/brain/advanc...
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Asaf (Klaf) Weisman @asafklaf.bsky.social · 09/10/2025
Metabolic disorders and pathophysiologies have many detrimental effects and are associated not only with tendinopathies but also with chronic #pain and are highly likely to be causal for these. This new review finds that diabetes has crazy effect sizes for many types of tendinopathies #physio #pain
esskajournals.onlinelibrary.wiley.com
The interplay between metabolic disorders and tendinopathies: Systematic review and meta‐analysis
This systematic review highlights a strong link between metabolic conditions and tendinopathies. Diabetes significantly increases the risk, especially for Achilles and upper limb tendinopathies. Dysl...
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Asaf (Klaf) Weisman @asafklaf.bsky.social · 08/10/2025
Very important and useful clinical information on the average age of onset of autoimmune diseases. From: www.thelancet.com/journals/lan... #physio #painscience
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Asaf (Klaf) Weisman @asafklaf.bsky.social · 04/05/2025
A new medical illustration I made per request. I wish I could just do those all day. #painscience #neuroskyence #physio 🛟🧪
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Asaf (Klaf) Weisman @asafklaf.bsky.social · 30/04/2025
They found a population of noxious heat and chemical irritation processing neurons - not “pain” and not “itch specific neurons”
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Asaf (Klaf) Weisman @asafklaf.bsky.social · 16/04/2025
According to Betteridge's law of headlines, the answer to the titles question is: NO! The study found MICROSCOPIC effect sizes for the contribution of psychological factors in the persistence of shoulder pain! #physio #painscience 🧪🛟 journals.lww.com/clinicalpain...
journals.lww.com
Do Psychological Factors Explain the Persistence of... : The Clinical Journal of Pain
education program. Methods: One hundred forty-three individuals with persistent RCRSP were included in this prospective cohort study. At baseline, participants completed self-reported questionnaire...
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Asaf (Klaf) Weisman @asafklaf.bsky.social · 03/04/2025
First phase 3 trial for the novel non-opioid drug Suzetrigine. It’s not placebo controlled and aimed to test the safety profile of the drug. I am not sure wheter this could be considered “well-tolerated” and “generally safe” #physio #painscience #neuroskyence 🧪🛟 www.tandfonline.com/doi/full/10....
tandfonline.com
Suzetrigine, a Non-Opioid NaV1.8 Inhibitor With Broad Applicability for Moderate-to-Severe Acute Pain: A Phase 3 Single-Arm Study for Surgical or Non-Surgical Acute Pain
Many patients experience inadequate pain control due to limited options that are both efficacious and safe for treating moderate-to-severe acute pain; therefore, opioids are still frequently prescr...
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Asaf (Klaf) Weisman @asafklaf.bsky.social · 24/03/2025
The obvious questions are: how did they get those mice to report they were experiencing pain? And since when pain is being processed anywhere in the brain when pain is a response and the outcome of all processing?
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Asaf (Klaf) Weisman @asafklaf.bsky.social · 05/03/2025
New study finds evidence for neuroinflammation in the periphery of individuals after WHIPLASH. Very well conducted study! Sample size ✅ control group ✅ Sig. findings on MRI ✅ Sig. findings on blood tests ✅ Sig. findings on QST ✅ #physio #neuroskyence #painresearch 🧪🛟
journals.lww.com
Evidence for peripheral neuroinflammation after acute... : PAIN
a subgroup with underlying nerve involvement in WADII, such as peripheral neuroinflammation. This study aimed to investigate the presence of neuroinflammation in acute WADII using T2-weighted magnetic...
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Asaf (Klaf) Weisman @asafklaf.bsky.social · 05/03/2025
New study finds evidence for neuroinflammation in the periphery of individuals after WHIPLASH. Very well conducted study! Sample size ✅ control group ✅ Sig. findings on MRI ✅ Sig. findings on blood tests ✅ Sig. findings on QST ✅ #physio #painresearch #neuroskyence journals.lww.com/pain/Fulltex...
journals.lww.com
Evidence for peripheral neuroinflammation after acute... : PAIN
a subgroup with underlying nerve involvement in WADII, such as peripheral neuroinflammation. This study aimed to investigate the presence of neuroinflammation in acute WADII using T2-weighted magnetic...
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Asaf (Klaf) Weisman @asafklaf.bsky.social · 16/02/2025
Fibromyalgia is a rabbit hole by itself. What have you learned from your quest?
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Asaf (Klaf) Weisman @asafklaf.bsky.social · 08/02/2025
Link includes 16 other examples pmc.ncbi.nlm.nih.gov/articles/PMC...
pmc.ncbi.nlm.nih.gov
Altered manifestations of skin disease at sites affected by neurological deficit
The contribution of the nervous system to inflammation in general and inflammatory skin disease in particular has been underappreciated. It is now apparent that the conventional clinical manifestation...
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Asaf (Klaf) Weisman @asafklaf.bsky.social · 08/02/2025
Striking cases of neuro-immune interactions: Upper pic: Psoriasis vanished from right hand after shoulder dislocation with brachial plexus injury. Bottom pic: Four months later, as nerves began to recover, psoriasis returned. #neuroskyence #painresearch #physio 🧪🛟
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Asaf (Klaf) Weisman @asafklaf.bsky.social · 06/02/2025
New study with combined 7 Tesla MRI imaging and PET scan finds altered structures of nerves and neuroinflammation in migraine patients. Vey robust design that includes a control group and same cases as right/left side dominant migraines as controls. #painresearch #neuroskyence #physio 🧪🛟
academic.oup.com
Trigeminal nerve microstructure is linked with neuroinflammation and brainstem activity in migraine
Using multimodal imaging, Tohyama et al. show that individuals with migraine have white matter damage in the trigeminal nerve. This damage is associated wi
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Asaf (Klaf) Weisman @asafklaf.bsky.social · 01/02/2025
FDA approves new pain killer- First non-opioid analgesic in decades targets sodium channels. #painresearch #physio #neuroskyence 🛟🧪 www.nature.com/articles/d41...
nature.com
US drug agency approves potent painkiller — the first non-opioid in decades
The FDA’s nod for suzetrigine bolsters confidence in the pharmaceutical industry’s strategy to target sodium channels.
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Asaf (Klaf) Weisman @asafklaf.bsky.social · 26/01/2025
New imaging technique published in Nature to image inflammation utilizes the protein CD-45 which is used only by white blood cells. Link: Link: www.nature.com/articles/s41... #painresearch #physio #neuroskyence 🛟🧪
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Asaf (Klaf) Weisman @asafklaf.bsky.social · 22/01/2025
Read more in our paper. Open access: www.sciencedirect.com/science/arti...
sciencedirect.com
“Nociplastic Pain”: A Challenge to Nosology and to Nociception
The construct of “nociplastic pain” has met with divergent receptions. On the one hand it has been enthusiastically embraced, to the extent of conflat…
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Asaf (Klaf) Weisman @asafklaf.bsky.social · 22/01/2025
It just means that the mode of activation is not nociceptive nor neuropathic. Unfortunately, the term nociplastic pain has been hijacked by those with vested interests to sell and promote psychological treatments for those with “non structural pain. Do not cooperate with this trend!
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Asaf (Klaf) Weisman @asafklaf.bsky.social · 22/01/2025
This activation can occur due to three mechanisms: nociceptive, neuropathic and nociplastic. It is now known that activation of nociception can occur independently and without observed tissue damage (nociplastic). This does not make nociplastic “non structural pain”
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Asaf (Klaf) Weisman @asafklaf.bsky.social · 22/01/2025
There is no such thing as “STRUCTURAL PAIN” and “non structural pain” etc. The plethora of unpleasant sensory experiences we humans use the word “pain” to describe them, are all the consequences of activation of our specialized appartus of nociception. #painresearch #physio #neuroskyence
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Asaf (Klaf) Weisman @asafklaf.bsky.social · 21/01/2025
It should be obligatory for every med/life sci grad student to learn formal logic & reasoning. Too many published papers are poorly argued and make basic inferential errors. This small change would dramatically improve science #physio #painresearch #neuroskyence 🧪🛟
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Asaf (Klaf) Weisman @asafklaf.bsky.social · 13/01/2025
⭐️Surgery should be considered if leg pain and decreased walking distance are the main clinical features that disturb and affect the patient.
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Asaf (Klaf) Weisman @asafklaf.bsky.social · 13/01/2025
⭐️Eventually, at one year follow-up, both groups equalized in their outcomes,but the surgery group improved faster. ⭐️Functional tests are good at reflecting the subjective self assessment of patients with Spinal Stenosis and can be used for shared decision making.
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Asaf (Klaf) Weisman @asafklaf.bsky.social · 13/01/2025
What you can learn from the study: ⭐️ Leg pain and the decreased ability to walk are the main features that led those who opted for surgery. ⭐️Contrary to the vilification trend of lumbar surgery in healthcare, those with leg pain improved significantly faster than the wait and see group.
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Asaf (Klaf) Weisman @asafklaf.bsky.social · 13/01/2025
💥New publication from our lab with some important clinical nuggets. We followed 2 groups of patients with Lumbar Spinal Stenosis and leg pain, who decided to undergo surgery or to “wait and see” A 🧵 journals.lww.com/jaaos/abstra... #physio #painresearch #orthosky 🧪 🛟
journals.lww.com
The Clinical Status of Patients With Lumbar Spinal Stenosis ... : JAAOS - Journal of the American Academy of Orthopaedic Surgeons
oth groups were assessed at baseline (t0) and 3 months (t1), with additional self-reported measures at 6 (t2) and 12 months (t3). Key outcomes included corridor walk distance, chair sit-to-stand repet...
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Asaf (Klaf) Weisman @asafklaf.bsky.social · 05/01/2025
Not that I know of currently. But I created the soorts science feed bsky.app/profile/did:...
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Asaf (Klaf) Weisman @asafklaf.bsky.social · 05/01/2025
I created the #sportsskyence feed. Pin it bsky.app/profile/did:...
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Asaf (Klaf) Weisman @asafklaf.bsky.social · 26/12/2024
Instead of talking about the predatory nature of MDPI journals, can we talk about how UGLY their formatting is? It’s literally hurting my eyes reading their papers online and PDFs 😣 #painresearch 🧪
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Asaf (Klaf) Weisman @asafklaf.bsky.social · 25/12/2024
I don’t think its a prank. I could be wrong though. The Scand J Pain has never published pranks or comic editions like the traditional BMJ Christmas issue.
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Asaf (Klaf) Weisman @asafklaf.bsky.social · 25/12/2024
🤘🏻The study I have been waiting for 30 years! Only Scandinavians can pull this out let alone publish it in a Scandinavian pain journal 🤘🏻 #painscience #physio #painresearch #ignobel2025 www.degruyter.com/document/doi...
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Asaf (Klaf) Weisman @asafklaf.bsky.social · 24/12/2024
Finalnd downgraded many MDPI and Frontiers journals in their quality grading. Good call for MDPI. As for Frontiers I am not really sure but tend to say its also a good call. 🧪 🛟 #physio #painresearch retractionwatch.com/2024/12/24/f...
retractionwatch.com
Finland Publication Forum will downgrade hundreds of Frontiers and MDPI journals
A committee of scholars in Finland has decided to downgrade 271 journals from Frontiers and MDPI in their quality rating system, in a move that may discourage researchers from submitting manuscript…
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Asaf (Klaf) Weisman @asafklaf.bsky.social · 23/12/2024
This paper is making the rounds on social media. I have been trying really hard to find and understand the point where this paper actually says something of novel significance and I failed miserably 🤷🏻‍♂️ #physio #neuroskyence #painresearch bmcmedicine.biomedcentral.com/articles/10....
bmcmedicine.biomedcentral.com
Pain can’t be carved at the joints: defining function-based pain profiles and their relevance to chronic disease management in healthcare delivery design - BMC Medicine
Background Pain is a complex problem that is triaged, diagnosed, treated, and billed based on which body part is painful, almost without exception. While the “body part framework” guides the organizat...
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Asaf (Klaf) Weisman @asafklaf.bsky.social · 12/12/2024
Sapolsky found “pain circuitry” in humans and “painful stimuli” in nature? How, intriguing
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Asaf (Klaf) Weisman @asafklaf.bsky.social · 11/12/2024
Since you haven’t noticed, I am ONLY talking about the nonsensical title. For some reason you took it as a personal attack on the authors and their paper which I said nothing about. If one is to engage in convo with peers, one needs to pay attention to the arguments
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Asaf (Klaf) Weisman @asafklaf.bsky.social · 11/12/2024
Amazing that you are completely missing the point. It’s also funny how you assume I know nothing about those conditions. Thanks for the lecture though
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Asaf (Klaf) Weisman @asafklaf.bsky.social · 11/12/2024
Educate me then. How can someone who is allegedly”insensitive to PAIN” have neuropathic PAIN? How is that even logical or not stupid? Have you actually thought this through, or are you just emotionally reacting?
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Asaf (Klaf) Weisman @asafklaf.bsky.social · 10/12/2024
Today, in the stupid article title department... How is this nonsense acceptable? #painscience #painresearch #neuroscience
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Asaf (Klaf) Weisman @asafklaf.bsky.social · 09/12/2024
Interesting new mutation identified in the SCN9A gene, which leads to nociceptive deficiency (not “insensitivity to pain” 🤦🏻‍♂️). This gene encodes for the Nav1.7 sodium gated channel. #painscience #painresearch #neuroscience pubmed.ncbi.nlm.nih.gov/39528285/
pubmed.ncbi.nlm.nih.gov
[Genetic analysis of a child with Congenital insensitivity to pain due to compound heterozygous variants of SCN9A gene] - PubMed
The child was diagnosed with CIP due to the compound heterozygous variants of the SCN9A gene. Above finding has enabled genetic counselling and reproductive guidance for this family.
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Asaf (Klaf) Weisman @asafklaf.bsky.social · 06/12/2024
Amazing! Deep thalamic brain stimulation helped mice and 2 human patients with partial spinal cord injury to regain the ability to walk! #medsky #physio 🧪 🛟 www.nature.com/articles/s41...
nature.com
Hypothalamic deep brain stimulation augments walking after spinal cord injury - Nature Medicine
Whole-brain anatomical and activity surveys identify the lateral hypothalamus as a key driver of recovery from spinal cord injury, leading to a deep brain stimulation therapy that augments the recover...
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Asaf (Klaf) Weisman @asafklaf.bsky.social · 06/12/2024
New study with shear wave elastography, shows patients with chronic nonspecific low back pain, have stiffer lumbar fascia snd muscles compared to controls. Good sample size and moderate to large effects! #painscience #physio #painresearch www.frontiersin.org/journals/bio...
frontiersin.org
Frontiers | Shear wave elastography based analysis of changes in fascial and muscle stiffness in patients with chronic non-specific low back pain
BackgroundThe quantitative assessment of individual muscle and fascial stiffness in patients with low back pain remains a challenge. This study aimed to comp...
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Asaf (Klaf) Weisman @asafklaf.bsky.social · 05/12/2024
Took it a bit, but just had the first sex bot follow me here 🙄
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Asaf (Klaf) Weisman @asafklaf.bsky.social · 02/12/2024
Welcome to the app. Pin the #sportsscience feed to yourhome to follow. bsky.app/profile/did:...
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