«Here’s an ad you haven’t seen, but it could be coming soon: A man jogs along a dirt path meandering through idyllic countryside. He pauses at an overlook and glances down at his cellphone. The phone screen flashes a number, telling him his blood sugar is normal. He smiles and resumes his run.

What’s different about this ad, you wonder? The jogger doesn’t have diabetes. So, how does his phone know his blood sugar? And why, in the middle of a run, does he want to know the result? Read on.»

Article written by  Robert H. Shmerling, MD



Harvard Health