May 5, 2010 12:50 pm Celebrity Fit Club's Dr. Ian Smith Celebrity Fit Club’s Dr. Ian Smith shares five ways to boost your happiness. US & World Videos 1:32 Police search for man accused of kidnapping woman at knifepoint outside Bucks County Wawa 1:12 Police investigate a shooting in Elsmere that left a 17-year-old boy in critical condition 0:20 Officials investigate a deadly crash on the 202 Parkway involving a semi-truck 1:49 South Philly residents find ways to beat the summer-like heat, starting with water ice 9:46 Another NJ earthquake: The Lineup