Astrocytes Might Be in Charge of the Brain

Astrocytes Might Be in Charge of the Brain

From The Quanta Podcast by Quanta Magazine

March 17, 2026 · 26 min

About this episode

This episode explores the significant roles of astrocytes in brain function, challenging the traditional view that neurons are the sole drivers of mental processes.

We tend to think of neurons as the sole engine of our thoughts, emotions, and everything in between. For decades, a group of large brain cells called astrocytes have been thought of as mere packing peanuts for the brain. But new research suggests otherwise. On this episode of The Quanta Podcast, host Samir Patel speaks with writer Ingrid Wickelgren about these big cells’ big responsibilities, which include controlling brain states like hopelessness, sleep, and hunger. This topic was covered in a recent story for Quanta Magazine. Each week on The Quanta Podcast, Quanta Magazine editor in chief Samir Patel speaks with the people behind the award-winning publication to navigate through some of the most important and mind-expanding questions in science and math. Audio Coda by NASA.

People in this episode

Host: Samir Patel

Guest: Ingrid Wickelgren

Topics covered

  • neuroscience
  • astrocytes
  • brain function
  • mental health
  • sleep

Keywords

  • astrocytes
  • brain states
  • hopelessness
  • sleep
  • hunger

More episodes of The Quanta Podcast

Explore listener stats, chart rankings, contacts and more on the The Quanta Podcast podcast page.