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A new preclinical study provides the first direct evidence that loss of a placental hormone during pregnancy alters long-term brain development, causing autism-like behaviors in male offspring.

With the help of brain imaging and a clip from the “The Good, the Bad, and the Ugly,” Columbia psychiatrists have discovered a part of the human brain necessary for understanding social interactions.

Columbia dermatologist Larisa Geskin, MD, explains who needs to use sunscreen, the difference between sunscreen and sunblock, and other questions about protecting the skin from the sun.

Columbia medical students used to experience emergency medicine briefly during other rotations, but now the specialty has its own clerkship in the second year, earlier than most other schools.