Margarida Xavier came to Massachusetts in the 1960s, when the Portuguese community in New Bedford was a booming microcosm of life back home. As younger generations integrate, life for the most elderly immigrants, who still maintain the culture and language of their home, are feeling isolated.
When researchers gave old mice the blood of young mice, it seemed to kickstart their brains, boosting their ability to learn and remember, and strengthening their muscles. Would a similar thing ever work in humans? It's too soon to say, really, but scientists are working on it.
Ntshepeng Motema is a South African living in New York. In this radio essay, she talks about how she's been spending a lot of time online checking for news on the health of South Africa's ailing former president, Nelson Mandela.
Pope Benedict XVI has announced that he is to step down at the end of February because of his frail health. Anchor Marco Werman speaks with Rome correspondent Megan Williams about reaction to the surprise announcement.
For today's Geo Quiz we explore the secret to longevity on a Greek island in the Aegean Sea where residents live, on average, longer than in Europe or the US. The BBC's Andrew Bomford travelled to island of old age to find out the secret.
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