
Environment
This chemist uses online videos to teach about the perils of microplastics
Imari Walker says her journey as a scientist and science communicator lets her talk about and advocate for her passion.
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Imari Walker says her journey as a scientist and science communicator lets her talk about and advocate for her passion.
A fat molecule's three long chains of carbon and hydrogen atoms repel water, stash energy and keep living things warm — even in the bitter cold.
The adolescent brain has a hard time resisting junk food. But high-fat, high-sugar diets can interfere with learning and pose risks to mental health.
As the famous book says, everybody poops. That’s 7.8 billion people, worldwide. For the 2.4 billion with no toilet, the process can be complicated.
Technology shows how microbes in the body respond to exercise. That helps scientists understand why those microbes keep athletes healthy.
Teens who gained excess weight showed less activity in the brain’s reward center when viewing or tasting foods with lots of fat.
Photosynthesis turns sunlight into energy for plants. Scientists want to know more about it, imitate it — even improve it.
Ultrasound turns on production of the hormone insulin in mice. Someday, it might help maintain healthy blood-sugar levels in people who were recently diagnosed with diabetes.
In the body, proteins act as biochemical machines to carry out the work of cells.
What’s behind a food’s flavor? More than what we taste, it turns out.