April 1, 2016 8:20 am Prescription for Health: Vertigo Vertigo is characterized by the sensation of spinning, but what are the causes of these dizzy spells and how can they be treated? US & World Videos 2:07 New details after police fatally shoot man in Nashua, NH 1:30 Special Olympics Massachusetts torch run arrives in Fenway 2:40 First permanent pride crosswalk installed in Boston 0:37 Orcas spotted off coast of Chatham 7:13 Karen Read murder trial Week 6 preview