The heart rate zone formula is flawed, especially for women. Here's how to rethink your training.

That tension becomes especially clear with heart rate zone training, a popular five-tier system that endurance athletes use ...
Study Finds on MSN

Mold hiding in your walls? Scientists develop electronic ‘nose’ that can detect it in minutes

The technology detects unique volatile organic compounds each mold species emits, creating distinct “odor signatures” the ...