‍️ TIL: For decades, people worldwide have reported hearing a mysterious low-frequency drone, often described as a distant idling diesel engine.Researchers studied 28 people who regularly hear this #sound, known as The Hum. Their conclusion published in PLOS ONE: It may be low-frequency #tinnitus – the #brain creating the perception of a sound that isn’t there. https://scitechdaily.com/scientists-may-have-finally-solved-the-mystery-of-the-strange-hum-heard-around-the-world/#science #hearing #ears #acoustics #biology #physics #research #norway #germany #health

3-Jun-2026#AirPollution may be harming your #brain’s ‘encyclopedia’Fine air #pollution (#PM2.5) is linked to lower semantic #memory — the type of memory used for facts, words and general knowledge https://www.eurekalert.org/news-releases/1130732 #science #environment #health