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Three scientists learned they carry genes that dramatically increase their risk for Alzheimer's disease. Now they're working to keep their brains healthy.

NPR's Rachel Martin talks to Jaime Nadal about the humanitarian effects of Russia's war on Ukraine. Nadal is the representative to Ukraine at the United Nations Population Fund.

The Harlem Hellfighters, who became legends for their service during World War I, were honored this week with a Congressional Gold Medal.

Daniel Tammet is a savant who experiences his world through equations and calculations. His new book, a collection of essays called Thinking In Numbers, explores language, history and even love through numbers.

As federal health agencies change their approach to vaccine policy leaving access for COVID shots uncertain, some states are taking things into their own hands.

Egyptians turned out in record numbers on Sunday to demand the resignation of Islamist President Mohammed Morsi. The protests marked Morsi's first year in office and appeared to be the largest demonstrations since an uprising forced Hosni Mubarak from power in 2011.