Archive · 14 Jan 2026
Sound Therapy Shows Promise for Alzheimer’s Treatment
Scientists found that playing a specific low-frequency sound to monkeys helped their brains remove harmful proteins linked to Alzheimer’s disease.
The sound, at 40 hertz, made the brain cleaner by increasing the levels of a waste protein called β-amyloid in the cerebrospinal fluid.
This means the brain was getting rid of the harmful plaque more efficiently.
The study suggests that sound therapy could one day be used as a treatment for Alzheimer’s, but more research is needed.
Experts say it’s a promising clue but not yet a proven treatment.
Right now, there’s no cure for Alzheimer’s, which affects 55 million people worldwide.
Listening to 40Hz music at home might not be harmful, but there’s no evidence it helps yet.
A study on monkeys showed that 40Hz sound therapy increased β-amyloid levels in cerebrospinal fluid by 200%, indicating better plaque removal.
The sound was played for one hour daily over a week, with effects lasting five weeks.
Prof. Giuseppe Battaglia noted the study is promising but not yet a breakthrough treatment.
Alzheimer’s disease currently has no cure and affects 55 million people worldwide.
Experts advise against interpreting the results too broadly, emphasizing the need for human trials.
- Who
- Researchers from the Chinese Academy of Sciences’ Kunming Institute of Zoology (KIZ) and Prof. Giuseppe Battaglia of the Institute for Bioengineering of Catalonia
- What
- A study on the effects of 40Hz sound therapy on β-amyloid plaque removal in monkeys
- When
- The study was conducted over one week with effects lasting five weeks
- Where
- The study was conducted at the Kunming Institute of Zoology in China
- Why
- To investigate if sound therapy can aid in the removal of β-amyloid plaques associated with Alzheimer’s disease
- Study Subjects
- Nine old monkeys
- Sound Frequency
- 40 hertz (Hz)
- β-amyloid Increase
- 200 per cent in cerebrospinal fluid
- Study Duration
- One week of daily one-hour sound exposure
- Effect Duration
- Higher β-amyloid levels persisted for five weeks
- Current Alzheimer’s Patients
- 55 million worldwide