Since 2016, the mysterious ‘Havana syndrome‘ has baffled researchers and sparked concerns among US government personnel stationed internationally. Now, two new studies led by the National Institutes of Health (NIH) shed light on this puzzling condition, suggesting a potential link to mental health while finding no significant physical cause.
Havana syndrome, characterized by intrusive sounds, pressure on the head, and subsequent symptoms like headaches and cognitive dysfunction, has affected over 1,000 US government personnel stationed abroad. Despite extensive investigations, researchers have struggled to identify a clear biological explanation for the symptoms.
In one study, researchers examined brain scans and other biological tests from 81 individuals with Havana syndrome and 48 healthy controls. Surprisingly, they found no significant differences between the two groups, challenging previous theories of underlying brain abnormalities.
However, the absence of detectable brain changes doesn’t rule out the possibility of an adverse event causing the symptoms. According to NIH neuroscientist Carlo Pierpaoli, while no long-term neuroimaging changes were observed, individuals may still be experiencing the effects of an event that led to their symptoms.
In a separate study involving 86 individuals with Havana syndrome and 30 controls, researchers conducted various assessments, including blood biomarker testing and neuropsychological evaluations. While no distinct biological markers were identified, participants with Havana syndrome reported more balance problems and higher levels of fatigue, depression, and post-traumatic stress disorder (PTSD).
Notably, 41% of those affected met the criteria for functional neurological disorders (FNDs), conditions often associated with stress, depression, and anxiety. Symptoms such as dizziness and vertigo were common among participants with FNDs.
Despite the lack of clear physical findings, researchers acknowledge the real and disruptive nature of Havana syndrome symptoms. They emphasize the importance of addressing mental health concerns and providing support to affected individuals.
While the cause of Havana syndrome remains elusive, these studies underscore the complexity of the condition and the need for further research to better understand its origins and potential treatments.
The findings have been published in JAMA, highlighting the ongoing efforts to unravel the mysteries surrounding Havana syndrome.
Read Now:British Researchers Developing World’s First Lung Cancer Vaccine
