How did coronavirus spread across the world?

How did coronavirus spread across the world?

By Beth Linas The virus apparently emerged in Wuhan, China. How does a virus that starts in one place spread around the world? The short answer is that we live in a global economy that includes frequent domestic and international travel, and viruses often hitch rides...
How does climate change impact our health?

How does climate change impact our health?

By Farah Qaiser A new Lancet Countdown report presents the lifelong health consequences that a child born today will face from climate change. We often talk about climate change in terms of melting icebergs, rising seawater, and elevated temperatures, but what about...
How do we measure pain, anyway?

How do we measure pain, anyway?

By Jeremy Delahanty How do we measure pain, anyway? Jeremy Delahanty investigates. Imagine you have been asked to define pain by your doctor. They might have asked for a rating on a scale from zero, no pain, to ten, unbearable pain. Or you chose from a selection of...