The podcast episodes provided focus on various aspects of hearing loss, including the impact of prolonged headphone and earbud use, the connection between hearing impairment and dementia, and the evolving technology used in hearing aids.

In the episode "Body Electric: Your earbuds and you-what all that listening is doing to us", the primary focus is on the risks of hearing loss due to prolonged exposure to loud sounds, particularly from headphone and earbud use. The episode investigates the impact of this issue and provides advice on safe listening practices.

The episode "Stop dementia before it starts" explores the biological mechanisms underlying dementia and identifies treating hearing impairment through hearing aids as a way to potentially reduce dementia risk and symptom progression.

The episode "Hearing Aid Tech Isn't Just for Listening Anymore" examines how modern hearing aids incorporate advanced technologies like AI and sensors to provide enhanced functions beyond amplifying sound, such as intelligent noise filtering, health tracking, and potentially predicting conditions like falls and depression.