Surmeli M, et al. - In this investigation involving 45 healthy participants (aged 18 to 45 years), researchers explored the connection between the BMI and the morphometric properties of auricula and its acoustic gain characteristics. For the BMI calculation, participants’ height and weight measurements were recorded. Investigators discovered that with BMI, the auricular area increased. They believe this is correlated with the auricula's soft tissue thickening related to elevated BMI. They also found that with BMI, the level of acoustic gain decreased inversely. They believe the decrease in acoustic gain is due to the increase of acoustic resistance following the increase of thickness of soft tissue. Findings suggested that the increase in BMI has a negative impact on auditory functions.