All gases expand when the temperature increases, so when lightning superheats the air at just a fraction of a second, the air expands so rapidly that it compresses the air in front of it. Thunder is ...

Lung sounds are the noises a person makes as they breathe in and out, including sounds of regular breathing. However, wheezing, crackling, stridor, and other sounds can also occur, indicating an ...

Tinnitus, also referred to as ringing in the ears, describes the perception of sound in the absence of any external noise. One potential tinnitus treatment is noise color therapy. Noise “colors” match ...

While there's more research supporting the use of some noise colors than others, there's growing interest in the entire spectrum. Whether it's called sound therapy, auditory stimulation or auditory ...