Close What triggers asthma attacks WBIR Staff and WBIR , WBIR 3:52 PM. EST September 22, 2013 CONNECT TWEET LINKEDIN GOOGLE+ PINTEREST Dr. Bob Overholt explains what triggers asthma and how you can treat asthma attacks. CONNECT TWEET LINKEDIN GOOGLE+ PINTEREST JOIN THE CONVERSATION To find out more about Facebook commenting please read the Conversation Guidelines and FAQs Leave a Comment TRENDING VIDEOS WBIR Breaking News Randy Boyd shares his vision for the Old City Giraffe watch is on a the world awaits the birth of a calf Success and frustration over recycling change Owner closing back Chilhowee Lake on pace to reopen this summer Using a 'magic cord' to improve TV quality Park prepares to tear down Elkmont cabins Man awarded damages in camper fire lawsuit Westgate Resort rebuilds after fires More Stories Bats Bounce Back? TWRA makes exciting discovery Feb 23, 2017, 5:49 p.m. Addiction counselor takes on her own battle Feb 23, 2017, 7:49 p.m. Sentimental farewell to Back Door Tavern Feb 23, 2017, 7:19 p.m.