The glymphatic system bathes the brain in cleansing fluids during sleep and clears away harmful cellular waste.
Researchers wanted to study the health effects of wildfire smoke. But they realized they didn’t know where it was and how much exposure people had.
Microplastics have turned up everywhere from the highest mountains to the bottom of the ocean — and even inside animals and people.
TMAO’s water-wrangling ability protects a critter’s critical proteins — including muscle — from crushing under deep ocean pressures.
Males eat more on long summer days, but females do not. Hormones may explain this difference.
Although some fungi can cause diseases, others can be eaten, used to make medicines or serve other useful functions.
Developing in the womb for a while — but being born ready to take on the world — may have helped post-dinosaur mammals rise to dominance.
This is bad news as a warming planet leads to growing numbers of excessive heat waves — and millions more people facing potentially deadly temperatures.
The pointy part of the inner elbow can break in arm wrestling, especially among teens whose bones are still growing.