Your Gym Is Watching You. Counting. Monitoring. Waiting.

Instead of just barking "100 more crunches (and faster)!" at you, some trainers are now electronically tracking their clients with devices like Fitbits. And if you’re training somewhere like Life Time Fitness, your coach will text you if your exercise band says you aren’t sweating like you’re supposed to be. » 4/17/14 6:00pm 4/17/14 6:00pm