This wall hanging can tell if you're really in shape

Millions of people now track their steps with Fitbits, Apple Watches, and other wearable fitness-tracking devices. We have to admit, it feels pretty good to hit that 10,000 steps-a-day goal.

But what if there was a measurable difference between a good step and a bad step? What if the quality of your gait could reveal more serious health issues?

Researchers at MIT's Computer Science and Artificial Intelligence Laboratory (CSAIL), led by Professor Dina Katabi, think there is a difference, and they can measure it with a new wall-hanging device that reads wireless signals bouncing off your body as you walk around your house. Read more...