Word: dr.
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...liberation of Ghana from colonial rule, in 1957, had its own effect on American history: It served as a source of inspiration for the American civil rights movement. Dr. Martin Luther King Jr. visited Ghana on the heels of the Montgomery Bus Boycott and drew hope from the African nation's experience, which Obama noted in his speech. "Dr. King was asked how he felt while watching the birth of a nation," Obama told the parliament. "And he said: 'It renews my conviction in the ultimate triumph of justice...
...have more cognitive ability and more neural tissue to start with - sharper minds, broadly - may be better able to withstand the ravages of age. "In some ways, you could think of it like a trained athlete who might be able to resist some atherosclerosis of the heart," explains Dr. Bradley Hyman, director of the Massachusetts Alzheimer's Disease Research Center and a professor of neurology at Harvard Medical School...
Past studies have shown that patients who have so-called asymptomatic Alzheimer's disease - those who have the hallmark brain lesions and plaques of Alzheimer's disease but no memory loss - also have enlarged neurons, compared with patients who suffer cognitive impairment. Dr. Diego Iacono, a neuropathology fellow at Johns Hopkins School of Medicine and the future director of the Brain Bank at Sweden's Karolinska Institute, conducted several such studies in predominantly male populations, but his latest research, the study published in Neurology, demonstrates the same patterns in an entirely female population - of nuns. (See pictures of the sisters...
...gold mine. The long-term data on more than 600 nuns from Minnesota has revealed a great many insights about the effects of aging and the development of Alzheimer's disease and dementia. And yet it was not in the Nun study's core data that its director, Dr. David Snowdon, first discovered a fascinating correlation between the sisters' language skills, based on essays they had written in their 20s when they first entered the convent (Snowdon discovered the essays in the convent's archives), and the likelihood that they would develop Alzheimer's later in life. The correlation...
...There are unhappy lottery winners, but generally if a poor person wins the lottery, they are a little happier with their life," noted Diener, who is known as "Dr. Happiness" for his foundational work in the field and who holds the aptly named Smiley chair in psychology at the University of Illinois. As for paraplegics, "there is a big drop for those who became 100% disabled, meaning they can no longer do any work." In general, Diener noted, people do adapt to a major life change but not completely. "We have to be careful when we cite these studies," warned...