If organs made New Year's resolutions, here's how our guts will strive for improvement in 2015.
LungCapacity How healthy are your lungs? Now you can test how efficient your lungs are, right from your own smartphone! An app called SpiroSmart acts like a spirometer, and even comes quite close to the accuracy of medical spirometers. All you do is take a deep breath and breathe toward your phone, which analyzes the reverberation of your lips. Have you ever used this app, or a spirometer before? I would love to hear your stories below.