Researchers at the NIH have been unable to find a cause for the mysterious 'Havana syndrome' that has afflicted a number of U.S. diplomats and spies abroad.
completed two yearslong studies that did not find any noticeable differences in the brains of people who are believed to have “Havana syndrome” and those who don’t.” is the name given to a mysterious illness that a small group of American diplomats and spies overseas have reported since 2016. U.S.
“Our goal was to conduct thorough, objective and reproducible evaluations to see if we could identify structural brain or biological differences in people who reported ,” said Leighton Chan, chief of rehabilitation medicine and acting chief scientific officer of the NIH Clinical Center and lead author on one of the papers.
“It is possible that individuals with an AHI may be experiencing the results of an event that led to their symptoms, but the injury did not produce the long-term neuroimaging changes that are typically observed after severe trauma or stroke,” Pierpaoli added. “We hope these results will alleviate concerns about AHI being associated with severe neurodegenerative changes in the brain.”
Co-investigator on the study and neuropsychologist at Walter Reed National Military Medical Center Dr. Louis French said the “post-traumatic stress and mood symptoms reported are not surprising given ongoing concerns,” but they “can have significant negative impacts on the recovery process.
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