A small admission

A small admission

Whenever I read about, think about, hear about or otherwise register the term circadian rhythm, I always think of an insect called the cicada rather than what the term "circadian" actually means.

The etymology of "circadian" is in the Wikipedia entry, but to save you time: Latin circa (about) + dies (day) = about/approximately a day. The circadian rhthym is the cycle of processes our body undergoes approximately every 24 hours.

If any of you have lived a somewhat rural summer life where giant cicadas sit motionless on trees for hours on end and just...hum, you'll understand why I associate "rhythm" with "cicada" rather than "circadian".

While this isn't the exact species I used to hear out my window during Illinois summers, cicadas sound something like this. If the little bastards weren't so grotesque, it'd be like a lullaby.

D