Human physiology

New findings suggest fingerprints and sweat work together in "fight or flight" survival responses.
Charles Q. Choi, Contributor
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
Different people respond to cannabis in different ways, making a blood THC level difficult to legislate.
Joel Shurkin, Contributor
Eating softer processed foods changed the position of humans' adult teeth, making it easier to say sounds like "f" and "v," new research suggests.
Charles Q. Choi, Contributor
Polio peaks in the summer, measles during the school year, and chickenpox in the spring.
Claire Cleveland, Contributor