Increasing exposure to ultrasound in the air causes nausea, dizziness, migraine, fatigue and tinnitus.
LONDON: Exposure to airborne ultrasound – high frequency sounds beyond the range of human hearing – from public address systems, loudspeakers and door sensors may be making people ill, a new study has claimed.
What frequencies are harmful to humans?
Low frequency sounds can be harmful
Human beings are normally able to detect sounds in the range of 20-20,000 Hz and it is well known that sounds within this range can damage the hearing. However, sounds under the frequency of 20 Hz can also affect the ear even though we are unable to hear them.
Can low frequency make you sick?
Symptoms resulting from exposure to infrasound can include fatigue, headache, nausea, concentration difficul ties, disorientation, seasickness, digestive disorders, cough, vision problems and dizziness.”
Why do some sounds make me feel sick?
Vestibular hyperacusis, on the other hand, causes feelings of nausea, dizziness, and imbalance when particular sounds are present. Where recruitment makes certain loud noises uncomfortably loud, hyperacusis makes all sounds too loud.
What do high frequencies do to the body?
High frequency sound causes two types of health effects: on the one hand objective health effects such as hearing loss (in case of protracted exposure) and on the other hand subjective effects which may already occur after a few minutes: headache, tinnitus, fatigue, dizziness and nausea.