By Catherine J. Frompovich

What caused U.S. embassy employees in the Cuban capital of Havana to lose their hearing?

Reports are surfacing the U.S. embassy staff in Havana has suffered “mysterious physical symptoms,” one being hearing loss.  Suggested causes included covert sonic devices.

According to Wikipedia [1], “Some make a focused beam of sound or ultrasound; some make an area field of sound.”  Sonic and ultrasonic devices are considered “weapons.”  Furthermore,

Extremely high-power sound waves can disrupt or destroy the eardrums of a target and cause severe pain or disorientation. This is usually sufficient to incapacitate a person. Less powerful sound waves can cause humans to experience nausea or discomfort. The use of these frequencies to incapacitate persons has occurred both in counter-terrorist and crowd control settings. [1]

[….]

Some police forces have used sound cannons against protesters, for example during the G20 summit in Pittsburgh ^[6] [2] and the Dakota Access Pipeline protest in South Dakota7]. [3]

Whatever has caused health problems for U.S. embassy staff in Cuba puts this writer in mind of what also happens from microwave technology radiofrequency waves of which there are two types: thermal and non-thermal radiation waves.

The negative health effect from the thermal wave is heating of tissue or skin, whereas the non-thermal wave produces numerous mysterious physical symptoms, similar to what’s happened to the U.S. embassy employees in Cuba.  Those non-thermal wave mysterious physical symptoms can include tinnitus and hearing impairment, plus a host of other health problems which have been referred to as electromagnetic hypersensitivity (EHS) or idiopathic environmental intolerance (IEI), the medical diagnosis.

Interestingly, the microwave industry professional associations don’t accept there are non-thermal wave adverse health effects, according to ICNIRP, especially.  However, what’s rather scientifically interesting is that non-thermal effects of ultrasound are recognized and used in medicine. Ultrasound devices can operate within the frequency ranges of 20kHz up to several gigahertz (gHz).

Frequencies above 20,000 hertz are called ultrasound.

One of the negative effects of ultrasound is cavitation—the formation of bubbles in tissue, something that should not happen to developing fetuses brains and central nervous system from all the ultrasounds pregnant moms receive, in my opinion.

Some human studies also suggest harm… Single or small studies on humans exposed to ultrasound have shown that possible adverse effects include premature ovulation, preterm labor or miscarriage, low birth weight, poorer condition at birth, perinatal death, dyslexia, delayed speech development, and less right-handedness.Jul 15, 2011

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