Katie Couric Media

HEPA Air Purifiers May Boost Brain Power in Adults Over 40

The impacts are similar to the cognitive benefits people experience from increased daily exercise.

By Nicholas Pellegrino & Doug Brugge, University of Connecticut; & Misha Eliasziw, Tufts University

April 22, 2026

Does the viral trend really work? A neurologist explains.

By Rachel Uda, Health and Business Editor

From flare-ups to fabrics, the longtime stylist explains how her psoriasis has influenced her approach to self-expression.

By Alaina Mancini, Managing Editor