Proprioception

Some people refer to proprioception as "the sixth sense".

Mary's proprioception is impaired, which means she's having trouble with her balance.

[…] it is achieved through a neuromuscular feedback system known as proprioception or kinaesthetic awareness, as well as through an auditory control system in which the ear monitors the sound and makes […]

Sometimes referred to as our sixth sense, proprioception is what helps high-level athletes take a penalty without looking at the ball, or orient themselves in the air while doing a twisting somersault.