recently there was an outpouring of concern and love after the prince george's county executive rashern baker announced his wife had early onset dementia. a part of alzheimer's. and we send our love and our prayers to his family. it is a devastating diagnosis for most people. i've been involved with alzheimer's association for some time and i know. my mother had dementia. how serious is apples humanners now? what are the numbers? -- alzheimer's now? what are the numbers? >> right now jc, there are 5.4 million people in the country that have been diagnosed with alzheimer's and 200,000 people have been diagnosed with younger onset. so less than 5% of the population has younger onset but the diagnostic tools as well as the awareness and thanks to you for raising that awareness, has brought attention and focus to this issue and it's a tremendous act of courage on the part of mr. baker to bring forward this personal family tragedy. >> very, very personal and she is so young. we're finding that younger people as you said are getting the disease, why is that? >> we're not sure statistically yet if t