This man's Fitbit may have saved his life

Some people are so unhappy with the performance of their Fitbit activity tracker they’re willing to sue. But at least one person can credit his wristband with dramatically improving his health. A 42-year-old man was recently admitted to the emergency room at Our Lady of Lourdes Medical Center in Camden, New Jersey with an irregular heart rhythm (arrhythmia) suffered in the wake of a seizure—a condition that doctors treated with an electrocardioversion after consulting historical dat