Feeling wheezy? You could call the doctor. Or soon you could use your smartphone to diagnose your lung health, with a new app that uses the frequencies in the breath to determine how much and how fast you can exhale.
Feeling wheezy? You could call the doctor. Or soon you could use your smartphone to diagnose your lung health, with a new app that uses the frequencies in the breath to determine how much and how fast you can exhale.