A few recommendations...

This is an article by Kathy W. that I really liked on Gather.com.... well worth reading, and following some of the links, even.... Dad's Brain, which tells of her father's experience - first, in taking care of her mother/his wife, who had Alzheimer's, for years - and then HE woke up one morning unable to ...well, go read it... it's worth the few minutes it requires, I think.

And if you haven't yet signed the petition to protect rainforest where some of the world's few remaining uncontacted peoples live, please visit Survival International's Uncontacted Peoples site.