Benefits of Activity Trackers
In the 2013 film Her, Theodore (Joaquin Phoenix) falls head over heels in love with his computer operating system. After meeting “her,” he never wants to be without her, and his life is changed forever. That’s how New Yorker Marian Rivman feels about her FitBit — the wearable activity tracker that counts her daily steps and the calories she burns and monitors her heart rate.