Why do our bodies need salt?

To taste better when the aliens eat us.

It works in tandem with calcium to regulate the bodys involuntary micoelectic pulses like the heart and voluntary skeletal muscles.

to balance fluid moving in and out of our cells, and to facilitate electrical impulses in our brains and muscles.

Eventually we die it helps our bodies decompose properly

to counter the potassium in our nerves.

The same reason we are the only mammals that cry salt water

Really?