As families try to adjust to a new normal after the Los Angeles wildfires, some parents and caregivers are noticing kids processing through make-believe.

NPR's A Martinez speaks with tech entrepreneur Bryan Johnson about the Netflix documentary "Don't Die: The Man That Wants To Live Forever," which portrays his quest to slow aging.

A team of scientists has shown it's possible to reduce inflammation in rheumatoid arthritis by stimulating the vagus nerve.