Free radicals generated at a specific site in non-neuronal brain cells called astrocytes may promote dementia, according to a ...

November 7, 2025 • Scientists know why leaves turn yellow in the fall: Chlorophyll breaks down, revealing the yellow pigment that was there all along. But red? Red is a different story altogether.

Elizabeth Tsurkov, a citizen of Israel and Russia, recounts a harrowing story of cruelty, survival, U.S. diplomatic pressure and, finally, release from the grip of a group backed by Iran. By Adam ...