Patwari's new study points out pros and cons of adding wireless detection of breathing to the motion-detecting capability.

ENGADGET: Researchers use wireless network to monitor breathing, could save lives

Here's how it works: a user's gear (helmet, shoes and gloves) is outfitted with sets of motion and pressure detecting sensors that track information based on its wearer's motions.

ENGADGET: Verizon's Connected Athlete adds sensors / data to your gear, tracks habits and more (hands-on)

One of the minor symptoms of the problem is a difficulty in detecting visual motion.

ECONOMIST: Reading minds | The