zkus zarizeni jeste restartovat.
jinak mrkni sem: http://www.howtoisolve.com/health-app-not-counting-steps-on-iphone-how-to-fix/
pripadne jeste tady je zajimava info, zkusit resetovat nastaveni v telefonu (bod 2): http://www.igeeksblog.com/walking-running-measurement-broken-in-health-app-on-ios-8/
