New study finds deep sleep better than long sleep

Researchers also discovered that immersive dreams can play a surprising role in preserving the feeling of deep sleep

Mohammed Mansour

The Sting in COVID-19’s Tail

At the outset of the COVID-19 pandemic, many feared that the disease would hit the world’s poorest countries the hardest—that cases would overwhelm hospitals, health-care workers would run out of…

Tarek Ghani

A System Failure

Shared transnational challenges are supposed to bring the world together. The Covid-19 pandemic, however, has done the opposite, exposing the shortcomings of the structures that govern global health…

Ashish Jha

Nanomaterials in Food

Nanotechnology is spurring a new industrial revolution. The process of engineering materials on an incredibly small scale (a human hair is about 80,000 nanometers wide) has led to advancements in…

Kristin Toussaint