The so-called “Havana Syndrome” among US diplomats in Cuba is most likely caused by crickets, not microwave weapons, says a declassified JASON review commissioned by the US State Department obtained by BuzzFeed News.

“No plausible single source of energy (neither radio/microwaves nor sonic) can produce both the recorded audio/video signals and the reported medical effects. We believe the recorded sounds are mechanical or biological in origin, rather than electronic. The most likely source is the Indies short-tailed cricket.”
The declassified JASON report concluded
Download and read the full declassified report here:
https://www.documentcloud.org/documents/21068770-jason-report-2018-havana-syndrome