sodium chloride

The group World Action on Science and Health has declared March 20-26 to be Salt Awareness Week. They're encouraging everyone to decrease salt consumption to reduce the risk of hypertension, heart disease and stroke. But a recent analysis suggests that this advice may be too broad a brushstroke for the majority of people.
In the battle against antibiotic resistance, here's an interesting proposal: salted doorknobs [in hospitals, or elsewhere] could fight super bug infections. Intrigued? So are we. Bummed you didn't think of it first? So are we.