Havana Syndrome
Havana Syndrome refers to a series of unusual health events first reported by U.S. government personnel in Havana, Cuba, beginning in 2016, with later reports associated with personnel in other locations around the world. These cases became officially described as Anomalous Health Incidents (AHIs). In July 2026, the U.S. Department of War renamed its AHI Cross-Functional Team the Directed Energy Bio-Effects (DEBE) Cross-Functional Team, reflecting a new departmental focus on investigating directed-energy biological effects and other non-kinetic threats.
Reported experiences have included sudden perceptions of sound or pressure, ear pain, dizziness, imbalance, headaches and cognitive or neurological symptoms. The circumstances and medical findings have varied between individuals, and no single cause has been established for all reported cases.
Hearing Microwaves: The Strange Science of the Frey Effect
An evidence-based examination of the microwave auditory effect, from early experimental research to proposed biological mechanisms and its potential relevance to anomalous health incidents.
Havana Syndrome: What Does the Medical Evidence Actually Show?
An evidence-based examination of the neurological, neuroimaging, vestibular and biomarker findings reported in people affected by Havana Syndrome, including what the studies establish—and what remains uncertain.
Intelligence Assessments & Government Inquiries
An evidence-based comparison of declassified U.S. intelligence assessments, congressional investigations and scientific reviews examining possible causes of Havana Syndrome, areas of agreement and disagreement, and what remains unresolved..
Sensor Evidence & Hardware Feasibility
Examining reported RF measurements, sensor evidence, directional transmission, propagation constraints, power requirements and the practical feasibility of proposed directed-energy mechanisms.