Mosaic

Hard to diagnose, with an unknown cause, Kawasaki disease has been puzzling doctors for 150 years. Jeremy Hsu explores what we know, and still don’t know, about this troubling childhood heart condition.

At 42, Nic Fleming discovered that he has never really seen in three dimensions. Can new therapies based on video games fix his lazy eye and give him his first glimpse of life in 3D?

The need to mend broken hearts has never been greater. But what if we could simply manufacture a new one?

One nerve connects your vital organs, sensing and shaping your health. If we learn to control it, the future of medicine will be electric.

In every country in the world, male suicides outnumber female.

Most of us would rather not think about what happens to our bodies after death. But that breakdown gives birth to new life in unexpected ways

The worst of the Ebola epidemic may be over but the World Health Organization has declared that life in Sierra Leone, as in other Ebola-affected West African countries, can only return to normal when transmission of the virus ceases and cases drop to zero. Unfortunately, not everyone in Sierra Leone is so concerned. Mark Honigsbaum…

If water is the elixir of human life, the one drink we can’t do without, it is also a carrier of death in many countries. According to the World Health Organization, nearly two billion people still drink water from sources that are tainted with faeces. That water kills at least half a million people each…

Allergies such as peanut allergy and hay fever make millions of us miserable, but scientists aren’t even sure why they exist. Carl Zimmer talks to a master immunologist with a controversial answer.