美国中情局（CIA）调查认为：Havana Syndrome 很可能是脉冲电磁能造成的

Panel's findings say 'pulsed electromagnetic energy' could have caused the spate of mysterious incidents that struck dozens of US officials around the globe

https://edition.cnn.com/2022/02/02/politics/havana-syndrome-report/index.html

Havana Syndrome is the name for a series of mysterious health incidents first reported by American diplomats and other government employees in the Cuban capital in late 2016.

Sufferers reported hearing loud noise, loss of balance, intense head pressure, and vision problems. Many continued to experience these or other health problems for some time.

Similar unexplained incidents have since been reported by U.S. officials and family members in other countries, including Germany, Austria, Russia and China. Especially worrying are the discoveries of at least two possible incidents around Washington, D.C. One happened near the White House last November.