Sleep

Bad news for e-book readers: Using one, instead of a book, or using a tablet or smartphone in the evenings before bed disrupts normal sleep patterns and alters the natural circadian rhythms crucial to healthy sleep. Now a new study confirms it in even more detail.

Lullabies are just a part of parenting, and growing up. We spoke with Kathy Henderson, collector of lullabies from around the world. It’s part of our “Ninth Month” series on pregnancy and childbirth. And try out The World’s Lullabies app — where you can join others in recording, sharing and listening to lullabies from different regions of the globe.Lullabies are just a part of parenting, and growing up. We spoke with Kathy Henderson, collector of lullabies from around the world. It’s part of our “Ninth Month” series on pregnancy and childbirth. And try out The World’s Lullabies app — where you can join others in recording, sharing and listening to lullabies from different regions of the globe.

After sleepwalking into a wall, journalist David Randall was left unsatisfied with his doctor’s recommendation to “take it easy.” The incident left him determined to uncover the mystery of sleep, a subject he explores in his new book, “Dreamland: Adventures in the Strange Science of Sleep.”

Students around the world share at least one thing in common — they don’t get enough sleep. But are the reasons for their sleepless nights the same, or different?

A new international study concludes that western countries have the most sleep-deprived children. Parents and teachers: Have you found that your students’ lack of sleep correlates to their performance in the classroom?