This gentle introduction to Parkinson's is the perfect approach for talking with children about the most common symptoms. Ever since Grandpa got Parkinson's, Noah has noticed he hasn't been the same. He doesn't have as much energy as he used to, and sometimes when he's excited or happy, he can't smile. Noah worries that Parkinson's is his fault, but Grandpa assures him it's not--and it won't stop him from having fun at the...