The immune system has to establish which cells belong to us and which are foreign, no mean feat.
Nobel laureate Peter Doherty explains immunity.
Gut microbe metabolites can tell us a lot about our health.
An expert explains how often you should poo and what it should look like.
Though examining poop samples scientists working on the American Gut Project are getting a new perspective on the microbes in our guts.
By Christos Georghiou/Shutterstock.com
In the largest citizen science experiment to date, 11,336 people sent poop samples to this San Diego lab so that microbiologists could figure out how the microbes in our guts make us healthy or sick.
Sugar mama? Researchers are teasing out the benefits of various molecules in human milk.
A chemist explains how some molecules in human breast milk help fight infection. Understanding their properties could lead to better infant formulas that share the health advantages of breastfeeding.
Eczema, which is common in babies, is itchy and painful.
In this clinical trial, the first of its kind, physicians explore whether directly applying a 'good' strain of bacteria to the skin can heal eczema
Our obsession with gut health, diet and well-being is far from new: the Victorians had very similar concerns.
No, you can’t blame (most) tooth decay on your parents. But for crooked teeth, the story’s a little more complicated.
Can you blame bad teeth on your genes? Here's why the answer is not as simple as you might think.
Researchers are getting closer to understanding how some people are more susceptible to posttraumatic stress disorder.
Bacteria cultured from a sample of air in a public building.
When jetting off on holiday, we rarely give a second thought to what microbes we might be taking with us. But humans spread trillions of bacteria around the globe, potentially harming ecosystems' balance.
A study of middle-aged British women shows that omega-3 has beneficial effects on gut health.
Healthy soil teems with bacteria, fungi, viruses and other microorganisms that help store carbon and fend off plant diseases. To restore soil, scientists are finding ways to foster its microbiome.
Modern diets are changing the compositions of our gut microbiota, and with that, our personalities.
For most of the twentieth century, we were at war with microbes, leading to substantial changes in our body's ecosystem. This has changed our diets, disease profile, moods and even personalities.
Here's what happened to a professor of genetic epidemiology's 'microbiome' when he lived with the Hadza.
The make-up of your gut bacteria will determine whether or not you put on weight.
Hadza man with zebra head.
We need micro-environmentalists to fight for the cause.
Estuaries are natural filtering points between freshwater and the ocean where pollutants tend to accumulate.
Unless we do something about about antibiotic pollution in the world's waterways, the next trip you take to the coast for a seafood dinner just might be your last.
Not quite yourself.
From losing inhibitions and anger to schizophrenia and dementia – science is uncovering the role small critters play in a range of illnesses and behaviours.
Three stories about researchers who have dabbled in self-experimentation – with varying results.
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The bacteria in a mother's breast milk are important because it helps develop a baby's gut. Research shows this bacteria are different depending on where mothers live and what they eat.