We live so much in our eyes these days that we underestimate and undervalue our most potent and primal sense: hearing. Here are three reasons we should place hearing back on the throne as king of our senses.1 Hearing is first in time. Hearing develops at just 12 weeks after conception according to French audiologist Alfred Tomatis. Long before we have ears, we are hearing our mother's heartbeat through every cell. (Even as adults we still hear through our whole bodies. Ears are just the specialists: we sense sound through our skin, bone and muscle, which is how the profoundly deaf world-renowned percussionist Dame Evelyn Glennie can hear with no ear function at all.) The cochlea, the engine of the ear, reaches adult size and full functionality just 18 weeks after conception, long before the eyes are effective. From that point we hear very well, and learn to distinguish our mother's voice - as well as the reassuring three-time beat of her heart (lub-dub-pause). Hearing is the first sense we create, and according to numerous near-death accounts it's also the la