Related Experiment Video
Updated: Aug 9, 2026
07:13
Modified Experimental Conditions for Noise-Induced Hearing Loss in Mice and Assessment of Hearing Function and Outer Hair Cell Damage
Published on: February 10, 2023
Effects of intensive and moderate cellular phone use on hearing function
M Faruk Oktay1, Suleyman Dasdag
1Department of Otolaryngology, Medical School of Dicle University, Diyarbakir, Turkey.
Electromagnetic Biology and Medicine
|April 6, 2006
Summary
Long-term mobile phone radiation exposure, especially over 2 hours daily, is linked to increased hearing loss. Moderate usage (10-20 minutes/day) showed no significant impact on hearing function.
Area of Science:
- Ototoxicology
- Environmental Health
- Audiology
Background:
- Mobile phones emit electromagnetic (EM) radiation.
- Concerns exist regarding the potential ototoxic effects of this radiation on hearing.
- Understanding dose-response relationships is crucial for public health.
Purpose of the Study:
- To investigate the impact of mobile phone radiation on hearing function.
- To compare hearing thresholds between heavy users, moderate users, and non-users.
- To evaluate the relationship between daily usage duration and hearing impairment.
Main Methods:
- Study included three groups: heavy users (2h/day), moderate users (10-20 min/day), and a control group (non-users).
- Hearing function assessed using Brainstem Evoked Response Audiometry (BERA) and Pure Tone Audiometry (PTA).
- BERA evaluated interpeak latencies; PTA measured detection thresholds across various frequencies (250 Hz-8000 Hz).
Main Results:
- No significant differences in BERA interpeak latencies were found among the groups.
- PTA revealed no hearing differences between moderate users and the control group.
- Heavy users (2h/day) exhibited significantly higher hearing detection thresholds, particularly at 4000 Hz (both ears) and 500 Hz/4000 Hz (left ear).
Conclusions:
- Prolonged daily mobile phone use (approx. 2 hours) is associated with a higher degree of hearing loss.
- Hearing impairment is linked to long-term exposure to EM fields from cellular phones.
- Moderate mobile phone usage appears to have no detrimental effect on hearing.
More Related Videos
09:05Generation and Quantitative Analysis of Pulsed Low Frequency Ultrasound to Determine the Sonic Sensitivity of Untreated and Treated Neoplastic Cells
Published on: July 22, 2015
06:04Systematic Hearing Performance Evaluation Process for Adolescents with Cochlear Implantation at Early Ages
Published on: March 24, 2023
Related Concept Videos
00:53Sound Intensity Level
Humans perceive sound by hearing. The human ear helps sound waves reach the brain, which then interprets the waves and creates the perception of hearing. The loudness of the environment in which a person is located determines whether they can distinguish between different sound sources.
The human ear can perceive an extensive range of sound intensity, necessitating the use of the logarithmic scale to define a physical quantity—the intensity level. It is a ratio of two intensities and hence a...
The human ear can perceive an extensive range of sound intensity, necessitating the use of the logarithmic scale to define a physical quantity—the intensity level. It is a ratio of two intensities and hence a...
01:00Cellular Injury I: Introduction
Cellular injury occurs when a cell cannot maintain homeostasis or adapt to stressors such as hypoxia, toxins, or trauma. Depending on severity and duration, injury may be reversible, allowing recovery, or irreversible, leading to cell death.General Mechanisms of Cell InjuryAlthough causes vary, most cellular injuries arise from a few key mechanisms that disrupt essential functions and often amplify one another. Cell survival depends on the extent and balance of these disturbances.ATP depletion...
01:23Cellular Adaptation I: Introduction and Atrophy
Cells can adapt to environmental changes to maintain function and avoid injury, a process called cellular adaptation. Adapted cells exist in a reversible intermediate state with changes in size, number, phenotype, metabolism, or function. These responses help cells meet altered physiological or pathological demands; for example, enlargement of breast and uterine tissues during pregnancy. Early adaptations may enhance function, but persistent stress eventually causes tissue damage.Types of...
02:59Biological Effects of Radiation
All radioactive nuclides emit high-energy particles or electromagnetic waves. When this radiation encounters living cells, it can cause heating, break chemical bonds, or ionize molecules. The most serious biological damage results when these radioactive emissions fragment or ionize molecules. For example, α and β particles emitted from nuclear decay reactions possess much higher energies than ordinary chemical bond energies. When these particles strike and penetrate matter, they produce ions...
01:21Cellular Injury II: Classification
Cellular injury is any process that disrupts a cell’s ability to maintain homeostasis, leading to structural or functional changes. It is broadly classified based on etiology (cause) and mechanism of damage.Classification by EtiologyCellular injury may result from several causes. Hypoxic injury happens due to reduced oxygen delivery, most commonly from inadequate blood supply, such as arterial obstruction; for example, coronary artery thrombosis can cause myocardial infarction. Chemical injury...
01:22Intensity Of Electromagnetic Waves
The energy transport per unit area per unit time, or the Poynting vector, gives the energy flux of an electromagnetic wave at any specific time. For a plane electromagnetic wave with E0 and B0 as the peak electric and magnetic fields and traveling along the x-axis, the time-varying energy flux can be given by the following equation: