NPR's Ari Shapiro speaks with Dr. Robert Waldinger, one of the authors of The Good Life: Lessons from the World's Longest Scientific Study on Happiness.

We think of lullabies as a sweet way of easing children into sleep. But the power of a lullaby can go further — to comfort, and to heal, even under the most difficult circumstances.

Life Kit offers tips on how to better understand the effect caffeine has on our bodies, and make sure your relationship with your favorite caffeinated drink is a healthy one.

Hoang Hong, founder of the environmental group CHANGE VN, was arrested Wednesday on tax charges, the U.N. says. Human rights experts say Vietnamese officials use the law to target civil society.

We inherit more genes from our maternal side. That's because it's the egg, not the sperm, that hands down all of the mitochondrial DNA. In addition, the W chromosome has more genes.

On Friday afternoon, spectators had a chance to see the most current images of Mars possible — which take 3 to 22 minutes to reach Earth — courtesy of the European Space Agency.

Scientists have shown that deep brain stimulation during sleep can help people retain new information. The approach could help people with memory problems related to disorders like Alzheimer's.

The state of Arizona today said it will no longer issue new development approvals based on groundwater alone.

Short Wave hosts Emily Kwong and Regina Barber talk about a paralyzed man that walked again, a sticker vaccine and the science behind a crop of new RSV vaccines.

During sleep, the brain strengthens memories it expects to use in the future. Now, scientists say they've found a way to enhance this process. This research might someday help people with memory loss.