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Columbia dermatologist Larisa Geskin discusses the potential dangers of the anti-sunscreen movement and how to protect yourself against the sun's harsh UV rays.

Analysis of 1.6 million brain cells from older adults has captured the cellular changes that occur in Alzheimer’s early stages, revealing potential new targets and routes for prevention.

Physician Jerard Kneifati-Hayek, the first Patient Safety Research Fellow at Columbia, leads efforts to improve care and enhance safety for patients from underserved communities.