Over the past five years, approximately 1,000 American and Canadian diplomats—and others—have reported symptoms of Havana Syndrome, a puzzling condition first identified in Cuba but now linked to cases worldwide.
The saga began in late 2016 when U.S. diplomatic staff in Cuba experienced unusual symptoms, including nausea, hearing issues, sleep disturbances, and balance problems. Between 2016 and 2018, at least 20 individuals were affected, with Canadian diplomats soon reporting similar issues. Havana Syndrome isn't confined to Cuba; cases emerged in 2018 across Germany, Australia, China, France, Kazakhstan, Russia, Switzerland, Taiwan, and Vietnam.
A January 2022 New York Times article, citing a CIA report, documented around 1,000 cases over six years. The 2021 Havana Syndrome Act has since improved financial access to care for those impacted.
Diagnosis remains challenging due to a wide array of symptoms: piercing pain, balance and coordination issues, dizziness, anxiety, irritability, head pressure, and cognitive fog. These overlap with conditions like migraines or depression, complicating identification.
Initial theories pointed to sonic attacks by hostile actors using advanced technology. Studies from 2018 and 2019 by the Perelman School of Medicine at the University of Pennsylvania examined 21 patients' brains, suggesting possible brain injury but no definitive cause. These findings drew both support and criticism.
Without a clear culprit, skeptics challenged symptom validity and sonic attack claims. Reports from the U.S. CDC and National Academy of Sciences identified radio waves or microwaves as plausible triggers.
Havana Syndrome remains unsolved, lacking conclusive evidence. Neurologist Robert E. Bartholomew's 2020 book Havana Syndrome proposes a psychogenic origin: real symptoms triggered by stress and anticipation of attacks in high-pressure environments, potentially spreading among colleagues.
Affected individuals extend beyond diplomats to military personnel and intelligence agents. About a dozen cases are under review for environmental factors, resembling traveler's syndrome rather than targeted assaults.