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Infrasound wavelengths can be generated artificially through detonations and other human activity, or naturally from earthquakes, severe weather, lightning, and other sources. [73] Like forensic seismology , algorithms and other filter techniques are required to analyze gathered data and characterize events to determine if a nuclear detonation ...
Infrasound sensitive fibers are found to be simple bipolar cells in the auditory ganglion with a diameter of 1.6-2.2 μm at the axon and 0.9-1.2 μm at the dendrites. [19] They originate in the apical end of the cochlea and they are located near fibers that transmit low frequency sounds in the acoustic range.
Noise from traffic, in particular, is considered by the World Health Organization to be one of the worst environmental stressors for humans, second only to air pollution. [2] Elevated workplace or environmental noise can cause hearing impairment, tinnitus, hypertension, ischemic heart disease, annoyance, and sleep disturbance.
Some organisms, such as elephants, [15] can register frequencies between 0 and 20 Hz (infrasound), and others, such as bats, can recognize frequencies above 20,000 Hz (ultrasound) to echolocate. [14] [16] Researchers use different weights to account for noise frequency with intensity, as humans do not perceive sound at the same loudness level. [12]
There is a belief that infrasound can cause symptoms, including tinnitus, stress, fatigue, memory loss, attention deficit, vertigo, migraines and sleep deprivation. [ 4 ] A panel of experts commissioned by the Massachusetts Department of Environmental Protection concluded in 2012 that "there is not an association between noise from wind ...
“Avian flu variants have proven to be particularly unpredictable and dangerous to humans in the past. That is why this response has been a top priority for the Biden-Harris Administration and ...
Other symptoms: Ant bites are typically painful and itchy. In addition to the bites, fire ants use their stinger to inject a venom called solenopsin, which causes a burning sensation, Frye says.
The symptoms mentioned above are the external signs of the physiological response to cochlear overstimulation. Here are some elements of this response: Damaged sensory hairs (stereocilia) of the hair cells; damaged hair cells degenerate and die. In humans and other mammals, dead hair-cells are never replaced; the resulting hearing loss is ...