March 16, 2009 6:04 pm Should Everyone be on Ritalin? People who have not been diagnosed with narcolepsy or A.D.D. are taking cognitive enhancing drugs, but the side effects could outweigh the apparent benefits. US & World Videos 1:36 Arizona Senate repeals 1864 abortion ban 1:40 Democrats say Big Oil misled public for decades about climate change 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 3:21 Katy Perry's surprising regret about cheeseburger Met Gala look