The 'Brown Note' is a total myth—there is no sound frequency that can make you lose control of your bowels.

The 'brown note' is a legendary sound frequency, usually said to be between 5 and 9 Hertz. This is called infrasound because it is too low for human ears to hear. People used to claim that these deep vibrations would shake the human gut so hard that it would cause an immediate bathroom emergency.In 2005, the popular TV show 'MythBusters' put this to the ultimate test. They used massive subwoofers to blast low-frequency sounds at 120 decibels, which is as loud as a rock concert. Even at that extreme volume, the test subjects felt plenty of vibrations, but nobody had an accident. Another show called 'Brainiac: Science Abuse' tried the same thing in 2003 and got the same result: nothing happened.Low-frequency sounds can definitely affect the body in other ways. Because our organs have their own 'resonant frequencies,' certain sounds can make your chest vibrate or even make your vision blurry by shaking the fluid in your eyes. For example, the human chest cavity naturally vibrates at around 7 Hertz.While these sounds can make you feel dizzy, anxious, or nauseous, they don't have enough power to move the contents of your intestines. To actually force that to happen, the sound would have to be so loud that it would likely damage your lungs or heart first. The myth stays popular because we can 'feel' deep bass in our bones, which creates a powerful and sometimes scary sensation.