Evolution has left humans with many vestigial traits—remnants of once-useful biological features that serve little or no modern purpose. One such example is the muscles around our ears, which in many ...

Ear tube surgery, or tympanostomy surgery, aims to reduce chronic fluid buildup behind the eardrums. This can reduce the frequency of middle ear infections. It may also improve hearing. Ear tube ...

The brain is a never-ending machine that receives, processes, and sends out countless messages every day. Sound is just a fraction of the many stimuli that the brain receives daily, but it is one of ...