we'll discuss memory loss, alzehimer's disease, and the biological basis for understand memory and otherin activities. tell me how you explain your remarkable things. >> yes, brenda! >> well, i'm going to have to put gene first because... >> rose: okay, gene's first. (laughter) >> because, you know, my mother who had a harder life than i did lived to be 95 and she worked... she was in music, different career all together and she worked at teaching. she taught music and singing and... to the age of 88 and she had to stop because she was getting deaf which, fortunately, i have escaped so far. and so otherwise she would have continued. >> rose: so genes is first. >> genes is first... genes are first. >> rose: yes, genes are first. (laughter) >> british training. >> rose: thank you. fair enough. >> i think engagement... i believe in engagement in kinds of activities but not... it's very important for me to be engaged with young people and as i say when i was young i liked to be engaged with older people across the spectrum of ages and some problem that excites with curiosity. i think my real