>> 160,000 doctors short. >> thank you for breaking it down for us. thank you. ever get sick of your tiny, cramped cubicle at work? new studies show your office affects how well you think. we'll show you how to make sure that doesn't happen to you. we'll put steve over in a cubicle. then breaking news on hurricane karl. outer bands leaving streets underwater and the storm that's approaching mexico unfortunately is just intensified again. plus, katherine schwarzenegger, the california governor's daughter is here live with details on her own campaign. first, happy birthday to jimmie johnson, the four time nascar sprint car champ is only 35 today. can you believe it? ♪