From late 2016 through to August 2017 , at least 21 US diplomatic faculty in Havana fell pale with inexplicable headaches , insomnia , and lightheadedness . Since its first reputation , the level has been getting weirder and weird . theory have ranged from acovert sonic weaponto mass hysteria , but no one seems to really have a clue what ’s going on .
Now , a scientific subject in the journalJAMAhas weighed in on the mystery and concluded that the somebody show concussion - similar symptoms resemble the effects of sustained injury to the mental capacity , however , none of them have ever pick up any famous trauma to the straits . In the report authors ' words , it ’s " neurotrauma from a nonnatural source " .
“ It ’s like a concussion without a concussion , ” coauthor Randel Swanson , a brain injury renewal specialist at the University of Pennsylvania , say in anaccompanying articleto the work .
“ If you took any one of these affected role and put them into a mind injury clinic , and you did n’t know their scope , you would think that they had a traumatic nous injury from being in a car fortuity or a blast in the military . ”
Before their nausea set in , almost all of the individuals heard some kind of a unknown bombination in their menage or hotel rooms . After this unusual auditive experience , 16 of the staffers experience retentiveness problem and felt “ mentally blurry ” . Nervousness or feeling overly excited was mark in at least 11 of them , 13 experience vivid vertigo , and 18 experienced sleeping problem .
The question remains : what caused this concussion - like injury , then ? Well , nothing really seems to fit the bank note . The idea of a sonic equipment , however , seems to be out of the question .
“ We actually do n’t opine it was the audible speech sound that was the problem , ” add coauthor Douglas Smith , a clinical neurology prof at the University of Pennsylvania . “ We intend the audible sound was a consequence of the exposure , because hearable strait is not have it away to induce genius injury . ”
Theories of a virus or chemical agent were also doubt , as there was no strong-arm evidence to prop up the claim . While a collective psychogenetic illness is “ plausible ” , the researcher explain it does n’t seem to match up with the nature of this case .
They concluded that the individuals most probably had some shape of “ brain injury ” , yet the cause of the trauma still remains a occult " nonnatural informant " . However , they believe it would be foolish to jump to any decision about the nature of the source until further probe is carried out .
lento but sure enough , it appears that the tarradiddle is coming together .
