Harvard Health Blog
Activity trackers: Can they really help you get fit?
By: Robert H. Shmerling, MD, Faculty Editor, Harvard Health Publications Lately, Iíve been checking the number of steps I take each day. Itís not hard to do. My phone tracks it without me even asking it to. It also tracks the number of flights of stairs Iíve climbed and the number of miles I covered. And there are other options: I could track how often I stand up, how many calories Iíve burned by