Experimental app might spot drug overdoses in time to help

WASHINGTON (AP) — Too often people die of an opioid overdose because no one’s around to notice they’re in trouble. Now scientists are creating a smartphone app that beams sound waves to measure breathing — and summon help if it stops.
The app is still experimental. But in first-step testing, University of Washington researchers found the software can detect breathing problems in the critical minutes after people injected illegal drugs.
It uses sonar, beaming sound waves a