![NPR Topics: Story of the Day Podcast show](https://d3dthqtvwic6y7.cloudfront.net/podcast-covers/000/011/349/small/npr-story-of-the-day.jpg)
Summary: In scans of sleeping infants' brains, certain areas light up when they hear angry voices. But is that heightened activation damaging, or does it mean the children are learning to cope?
Summary: In scans of sleeping infants' brains, certain areas light up when they hear angry voices. But is that heightened activation damaging, or does it mean the children are learning to cope?