In the US, 90% of adults own a mobile device and spend more than 3 hours on average a day maintaining a prolonged neck flexion posture of 45 degrees or more to use them. Certified ergonomist Blake McGowan shares the results of a study that examined the biomechanical consequences of this “text neck” posture in the video below. References: Barrett JM, McKinnon C, Callaghan JP. Cervical spine joint loading with neck flexion. Ergonomics. 2019 Oct 15:1-8.