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Brian Walitt

From MEpedia, a crowd-sourced encyclopedia of ME and CFS science and history

Brian Walitt, M.D., M.P.H. is a researcher in the Division of Intramural Research within the National Center for Complementary and Integrative Health at the National Institutes of Health (NIH) in the United States and oversees intramural clinical protocols. He is the lead clinical investigator of the NIH Post-Infectious ME/CFS Study.

Research[edit | edit source]

Dr. Walitt's research interests include "pain and related interoceptive disorders (i.e. fibromyalgia, chronic fatigue)" and "social construction of illness and disease."

He is interested in studying "perceptual illness" which he defines as follows:

"In these disorders, a person experiences a range of different bodily sensations, such as pain and fatigue, without any clear external cause. In some, these sensations can be bothersome while in others they can be disabling. The perceptual illnesses that interest me change their names with every generation, with current disorders being called fibromyalgia, chronic fatigue syndrome, and post-Lyme syndrome." [1]

Walitt was one coauthor on a small uncontrolled study (n = 9) in 2013 exploring the relationship between genetic expression and pain catastrophizing in fibromyalgia, which used a score of 16 on the Pain Catastrophizing Scale as the threshold for determination of "high catastrophizing".[2] That is lower than the threshold of 30 recommended by the scale's manual to indicate a "clinically relevant level of catastrophizing," and a mean score for 851 injured workers was 20.90.[3] The high catastrophizing subgroup (n = 5) in the study averaged a pain catastrophizing score of 23.6, below the threshold recommended by the scale manual. The authors concluded that "specific physiological pathways may possibly delineate pain and catastrophizing mechanisms."

Views on Fibromyalgia and ME/CFS[edit | edit source]

Walitt stated in 2015 his belief that fibromyalgia is a "psychosomatic experience," a variant of normal, and not an abnormal disease state that should be medicalized.[4] He stated that fibromyalgia is not a disease but rather a way of "dealing with the difficulties of just being a human.”[5]

In a 2015 paper on chemotherapy related cognitive dysfunction[6] co-authored by Walitt, fibromyalgia and chronic fatigue syndrome are referred to as somatoform illnesses, with their hallmark being a "...discordance between the severity of subjective experience and that of objective impairment...".

Walitt also wrote in 2013 that "Fibromyalgia is closely allied with and often indistinguishable from neurasthenia" and goes on to claim that "Time brings clarity to confusing illnesses of the past, and we now recognize that hysteria, neurasthenia, and railway spine were almost always psychogenic disorders."[7]

Discussing the results of the NIH Post-Infectious ME/CFS study, Walitt said in 2024 that "Rather than physical exhaustion or a lack of motivation, fatigue may arise from a mismatch between what someone thinks they can achieve and what their bodies perform."[8]

Notable studies[edit | edit source]

  • 2024, Deep phenotyping of post-infectious myalgic encephalomyelitis/chronic fatigue syndrome (Full text)

Talks and interviews[edit | edit source]

Online presence[edit | edit source]

Online presence[edit | edit source]

See also[edit | edit source]

Learn more[edit | edit source]

References[edit | edit source]

  1. https://web.archive.org/web/20201022065553/https://www.georgetownhowardctsa.org/research/meet-our-researchers/brian-t-walitt-md
  2. Gene expression profiles of fatigued fibromyalgia patients with different categories of pain and catastrophizing: A preliminary report
  3. "The Pain Catastrophizing Scale User Manual" (PDF). web.archive.org. Archived from the original (PDF) on October 21, 2014. Retrieved June 15, 2025.
  4. VIDEO: Fibromyalgia doesn’t fit the disease model
  5. NIH lead clinical investigator thinks CFS and fibro are somatoform, #MEAction, February 20, 2016
  6. Chemobrain: A critical review and causal hypothesis of link between cytokines and epigenetic reprogramming associated with chemotherapy
  7. Culture, science and the changing nature of fibromyalgia
  8. "Insight into mechanisms of ME/CFS". National Institutes of Health (NIH). Retrieved June 15, 2025.
  9. Stussman, Barbara; Williams, Ashley; Snow, Joseph; Gavin, Angelique; Scott, Remle; Nath, Avindra; Walitt, Brian (2020). "Characterization of Post–exertional Malaise in Patients With Myalgic Encephalomyelitis/Chronic Fatigue Syndrome". Frontiers in Neurology. 11. doi:10.3389/fneur.2020.01025. ISSN 1664-2295.
  10. Rayhan RU, Stevens BW, Timbol CR, Adewuyi O, Walitt B, VanMeter JW, Baraniuk JN. (2013) Increased Brain White Matter Axial Diffusivity Associated with Fatigue, Pain and Hyperalgesia in Gulf War Illness. PLoS ONE 8(3): e58493. https://doi.org/10.1371/journal.pone.0058493
  11. NIH lead clinical investigator thinks CFS and fibro are somatoform