Some have compared the hum to the sound of a distant engine or a low-frequency vibration, while others have said it sounds like a high-pitched ringing in their ears. The sound is often described as being most prominent at night, when there are fewer ambient noises to drown it out.

The source of the mysterious hum remains unknown, with theories ranging from industrial machinery to secret government experiments. Some experts believe that the hum could be caused by natural phenomena, such as tectonic plates shifting deep underground.

Regardless of the cause, the mysterious hum has been driving people crazy, with many reporting symptoms such as insomnia, anxiety, and even hallucinations. Efforts to block out the noise, such as wearing earplugs or using white noise machines, have been largely unsuccessful.

As scientists continue to investigate the source of the mysterious hum, those affected can only hope for some relief from the constant, maddening sound.