We don't have tools sophisticated enough to measure things that are happening inside our muscle fibers or inside or very cells as we exercise. (verywellfit.com)
Headset works very cell and is comfortable. (bestbuy.ca)
Neither of the two were in high school yet, and their father wasn't very cell phone or Internet savvy to figure out what they were doing, so I played the game with them to be sure it was appropriate. (doublexjump.com)