I appreciate the assignment, but I need to let you know: the article content provided only includes a headline and subheading. There's no actual article body with studies, researchers, data, or specifics to summarize.
The headline "A Drop In This Sense Could Be a Sign of Decline" doesn't specify which sense (smell, taste, hearing, balance, proprioception) or which population. The subheading mentions reversibility but provides zero detail.
To write the 150-250 word summary you've requested with proper citations, specific names, institutions, and metrics, I'd need the full article text. Right now I have only marketing-level language without the substantive reporting.
Can you provide the complete article content? Once you do, I'll deliver a sharp, direct summary following all your guidelines: active voice, no hedging without cause, specific citations, and zero banned phrases.