Photographer: Devon Ravine/Northwest Florida Daily/AP Photo

Why the Air Force Wants to See Pilots’ Sweat

The military is learning how to get information from perspiration that usually comes from blood, urine, and saliva. The commercial possibilities are legion.

However icky one may consider eccrinology, the study of sweat and other gland secretions, this liquid is a fine carrier of the same biomarkers that the medical community usually gathers from our blood, urine, and saliva. It’s also the least invasive—no needle, cup, or swab needed.

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