High Stress Hormone Levels Halt Mouse Fur Growth
High Stress Hormone Levels Halt Mouse Fur Growth
Corticosterone interferes with signaling in the skin that normally activates hair follicle stem cells, possibly explaining the link between stress and hair loss.
High Stress Hormone Levels Halt Mouse Fur Growth
High Stress Hormone Levels Halt Mouse Fur Growth

Corticosterone interferes with signaling in the skin that normally activates hair follicle stem cells, possibly explaining the link between stress and hair loss.

Corticosterone interferes with signaling in the skin that normally activates hair follicle stem cells, possibly explaining the link between stress and hair loss.

hair
Stress Turns Hair Gray By Depleting Pigment-Producing Stem Cells
Stress Turns Hair Gray By Depleting Pigment-Producing Stem Cells
Ashley Yeager | Jan 23, 2020
In mice, the fight-or-flight response overactivates the cells, causing a drop in their numbers, which leads to loss of hair color.
Image of the Day: Hair Strength
Image of the Day: Hair Strength
Emily Makowski | Dec 18, 2019
Thin strands tend to be stronger than thick ones.
Image of the Day: Hot Stripes
Image of the Day: Hot Stripes
Chia-Yi Hou | Jun 14, 2019
Biologists study how a zebra’s hair helps it keep cool.
Technique Improves Use of Hair for Drug Tests
Technique Improves Use of Hair for Drug Tests
Chia-Yi Hou | May 15, 2019
Researchers develop a washing method that is better at removing drugs that have contaminated hair from the outside than existing protocols.
Merino Sheep Provide Clue to Curly Hair
Merino Sheep Provide Clue to Curly Hair
Catherine Offord | Mar 23, 2018
The cells on one side of each wool fiber are longer than the cells on the other, researchers find. 
Source of Scales, Feathers, Hair
Source of Scales, Feathers, Hair
Tanya Lewis | Jun 27, 2016
Reptiles, birds, and mammals all produce tiny, bump-like structures during development.   
Scalp Microbiome Linked to Dandruff Severity
Scalp Microbiome Linked to Dandruff Severity
Catherine Offord | May 12, 2016
Researchers identify differences in the composition of microbial species living on the scalps of people with different levels of dandruff.
Getting to the Root
Getting to the Root
Catherine Offord | Mar 2, 2016
A study reveals the genes underpinning hair’s characteristics, from its color to its tendency to grow on the face.
Capsule Reviews
Capsule Reviews
Bob Grant | Mar 1, 2016
Herding Hemingway's Cats, Hair: A Human History, Restless Creatures, and The Mind Club