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Human physiology

Traditional microscopes make it look like sperm tails undulate symmetrically -- but that's an optical illusion.

Nala Rogers, Staff Writer

Study attributes age-related hearing loss to hair cells -- the same sense organs that are damaged by loud noises.

Nala Rogers, Staff Writer

What links a wildfire raging across a forest to the electric signals rippling through our hearts? Enter the world of waves in excitable media.

Yuen Yiu, Staff Writer

Study identifies having a fat tongue as a primary factor in the common sleep disorder.

Yuen Yiu, Staff Writer

Researchers found that when we fall from different heights, our bodies move differently to absorb the impact.

Yuen Yiu, Staff Writer

Oxygen-sensing genes allow cells to adapt when oxygen levels drop.

Brian Owens, Contributor

New study of hearts from apes and humans shows that people need to be active to have healthy hearts.

Chris Gorski, Editor

New study shows that we direct our gazes differently even when we are staring at the same images.

Charles Q. Choi, Contributor

Picture shows rolled joints and the components on a table

Different people respond to cannabis in different ways, making a blood THC level difficult to legislate.

Joel Shurkin, Contributor

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