June 7, 2011 12:50 pm Are Dirty Girls Healthy Girls? Are allergy rates linked to playtime preferences? New research suggests that girls are less able to build up their immune systems when they don’t play outdoors. Local 1:36 Arizona Senate repeals 1864 abortion ban 1:40 Democrats say Big Oil misled public for decades about climate change 1:59 Smart devices make accidental 911 calls, emergency communications centers say 1:45 NYPD enters Columbia University in riot gear to clear protest 4:28 ‘Apples Never Fall' and ‘Jurassic Park' star Sam Neill reveals his real name