I'm not sure the low frequencies even come in thru your ears. The article talks about 19 Hz being the resonance frequency of your eyeballs. And it wouldn't su

I'm not sure the low frequencies even come in thru your ears. The article talks about 19 Hz being the resonance frequency of your eyeballs. And it wouldn't surprise me if your chest cavity resonates as well, which might imitate fear if it feels like your chest tightening.