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There are over 200 genes identified that can cause hearing loss, highlighting the significant genetic component. However, environmental factors like noise trauma, aging, and infections also play a crucial role.
Tinnitus, a phantom sound produced by the brain, is similar to phantom limb pain. While some people can ignore it, others find it debilitating, highlighting the variability in how our brain circuits handle emotional components.
Hearing thresholds can be influenced by the sonic imprints of the environments we live in, such as cities with unique noise profiles.
Hearing is crucial not just for communication but also for emotional, relational, and cognitive well-being. Historical figures like Socrates and Helen Keller have highlighted the profound impact of sound on human experience.
Hearing thresholds can be influenced by the sonic environment of a city, affecting how people perceive sound based on where they live.
The relationship between sound and emotion is deeply rooted in our brain's pathways. Auditory signals travel from the ear to the brain, interacting with emotional pathways and the limbic system, which explains why music and speeches can be so emotionally moving.
Species like bats and moles, which may lack vision, survive superbly due to their acute sense of hearing, highlighting the essential role of sound in survival.
ASMR, or auditory sensory meridian reflex, involves sounds like whispering or scratching that some find extremely pleasant, while others find them unpleasant. This reflects the diverse ways our brains process auditory stimuli.
Hearing loss is a huge problem, affecting 1.5 billion people and disabling half a billion. The World Health Organization estimates another billion will be affected by 2050. This issue is underappreciated and stigmatized, with many living in silence.
Hidden hearing loss can occur even if standard audiometric tests show normal results. This happens when synapses connecting sensory cells to neurons are damaged by loud sounds, leading to issues like tinnitus.