Humming can help maintain healthy nasal passages and avoid sinus infections. הזמזום יכול לעזור לשמור על מעברי האף בריאים למנוע סינוסים זיהומים.
Something More to Hum About [From the website of Mercola]
Swedish researchers have found that humming can help maintain healthy nasal passages and avoid sinus infections. Humming increases the amount of air exhaled from the nose versus other common exhalations, which could lower the risk of sinus infections if done routinely.
The researchers measured hummers’ exhalation levels by tracking nitric oxide (NO), a gas produced in the lungs and nasal passages to help blood vessels dilate. Humming increased the NO released into the nose from the sinuses.
Humming also facilitates air exchange from the sinuses into nasal passages, ventilating them and protecting them from infection. In addition to its ability to elevate the mind and heart, humming seems to have even more to hum about.
American Journal of Respiratory and Critical Care Medicine 2002;166:144-145