Your deep core muscles aren't visible, but they could prevent chronic back pain.
Extreme emotional distress can cause the heart muscles to weaken.
Don’t worry, it’s not a fair measure of fitness.
Our fear of fevers made us terrified of even a slight increase in body temperature.
Yes, technically, but not nearly enough.
But you can still wear them if you want.
Scientists haven't quite landed on an answer
Wading in makes it a little safer
When you feel frazzled, so do your organs and cells
The interesting biology of breathing in diesel exhaust
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