A viral TikTok trend claims that listening to music tuned to 432Hz can 'reset your brain,' but scientists have poured cold water on the idea. Users on the social media platform have been promoting the frequency as a natural healer, with one stating, '432 Hz is known to naturally resonate with our body, directly related to the earth & nature.' Another added, 'It calms your mind, aligns your body, and resets your energy field - fast.' A third claimed, '432Hz vibrates in harmony with your biology to lower cortisol and pull your brain into a state of deep, centered peace. It's a literal tuning fork for your DNA.'
Scientific Perspective
Writing in The Conversation, Dr Sandra Garrido, a music psychologist at the University of Sydney, dismissed these claims. 'While 432Hz might sound soothing to some ears, it's not a shortcut to cosmic alignment,' she said. The idea that specific frequencies improve health dates back to ancient Greece and the Renaissance, but Dr Garrido notes there is little scientific support. 'Although the concept of cosmic alignment is intriguing, there's little scientific support for the idea that specific frequencies have any magical effect on wellbeing,' she explained.
How Sound Affects Wellbeing
Modern research suggests that the effects of sound on wellbeing depend on perception. 'There is some evidence that our physiological systems (such as breathing and heart rate) synchronise to any beat that we hear,' Dr Garrido said. 'This can help lower our levels of arousal or alertness.' Slower, calmer music tends to relax us because of its slower beat, not because of a specific frequency.
Why 432Hz Feels Soothing
Dr Garrido attributes the appeal of 432Hz to individual preferences. 'Our brains tend to interpret sounds as expressions of emotional states. When humans are relaxed, our voices are usually lower in pitch,' she said. 'Thus, notes of a lower pitch are sometimes perceived as more relaxing than notes that are higher pitched. Again, this doesn't mean there is anything special or magical about 432Hz tunings – just that for many people, lower pitched notes seem calmer. The same effect could be achieved by listening to other music or frequencies with a lower pitch.'
Practical Advice
For those seeking relaxation, Dr Garrido advises focusing on personal responses rather than frequencies. 'Notice how different sounds make you feel, what slows your breathing, eases your body, or lifts your mood,' she said. 'When it comes to wellbeing, what works is what works for you.'
The Colours of Noise
- White noise: All audible frequencies equally distributed. Examples: fan, TV static, hissing radiator.
- Pink noise: All audible frequencies with more energy at lower frequencies. Examples: rainfall, wind, rustling leaves.
- Brown noise: All audible frequencies with even more energy at lower frequencies. Examples: strong waterfalls, rumbling thunder.
