March 28, 2011 7:44 pm Facebook May Cause Depression Studies show teens may get depressed seeing others having more friends and more exciting status updates. US & World Videos 7:08 Whistleblower says Contra Costa Health cutting dangerous corners, harming Medi-Cal patients 1:56 USPS offering $150K reward after at least 2 suspects robbed postal worker in Oakland 2:21 Downtown First Thursdays offers new hope to SF residents, struggling merchants 3:09 A closer look: health care whistleblower speaks 2:42 San Jose unveils mobility hub at apartment complex