Ketamine Is Revealing a New Understanding of Depression and the Brain

Some experts view ketamine as a tool to unravel the biological causes of depression and, perhaps someday, cure it

Illustration: Simone Noronha

If you or someone you know need help, consider calling the National Suicide Prevention Lifeline at 1–800–273-TALK (8255) for English, 1–888–628–9454 for…