https://www.bbc.com/news/world-latin-america-49770369
Canadian researchers say they may have identified the cause of a mystery illness which plagued diplomatic staff in Cuba in 2016.
Some reports in the US suggested an "acoustic attack" caused US staff similar symptoms, sparking speculation about a secret sonic weapon.
But the Canadian team suggests that neurotoxins from mosquito fumigation are the more likely cause.
The Zika virus, carried by mosquitoes, was a major health concern at the time.
So-called "Havana syndrome" caused symptoms including headaches, blurred vision, dizziness and tinnitus.
It made international headlines when the US announced more than a dozen staff from its Cuban embassy were being treated.
Cuba denied any suggestion of "attacks", and the reports led to increased tension between the two nations.
(Score: 2) by jmichaelhudsondotnet on Wednesday September 25 2019, @11:13AM
This is all just scientific work that has not been done yet, potential subvariants of tinnitus, yet you want to present all we know now as a permanent fact.
Do you understand how the mechanism for a ringing tinnitus differs from a chirping tinnitus? Forcing the eardrum to operate at maximum flux in a loud environment streteches things out and overloads the mechanism, resulting in lowered sensitivity, perceived as a ring, as I understand it.
How does stretching the eardrum and messing with the signal/noise ration result in anything other than a flat signal, generating instead a complex waveform?