A woman pulls on her dark hair, showing graying roots. She looks frustrated, representing how stress can cause hair to go gray prematurely.
| 4 min read
Stress can accelerate the depletion of pigment-producing cell progenitors, which is a natural aging process. But this may be reversible to a certain extent.

hair

mummy

Scratchy Scalps Help Glue Together Pieces of an Ancient Past

a microscope image of mouse fur

Some Mammals May Use Specialized Hairs to Detect Predators’ Heat

High Stress Hormone Levels Halt Mouse Fur Growth

Stress Turns Hair Gray By Depleting Pigment-Producing Stem Cells

Image of the Day: Hair Strength

zebra hair temperature regulation thermoregulation adaptations color air

Image of the Day: Hot Stripes

hair analysis drug testing forensics doping test

Technique Improves Use of Hair for Drug Tests

Merino Sheep Provide Clue to Curly Hair

Source of Scales, Feathers, Hair

Trending

A cross section of a pine stem shows cells stained purple and blue.

The Biggest Breakthroughs in Cell Biology in 2025

Gollum, the extremely territorial character from The Lord of the Rings, famous for his line, “My precious,” sits on a rock, looking up.

The Gollum Effect: 44 Percent of Scientists Report Territorial Research Experiences

Photo of John Calhoun crouches within his rodent utopia-turned-dystopia

Universe 25 Experiment

A close-up image of a fly landing on a dessert

What Happens When a Fly Lands on Your Food? 

Multimedia

Alzheimer: Phosphorylation of Tau proteins leads to disintegration of microtubuli in a neuron axon stock photo

Advancing Alzheimer’s Disease Detection with Brain-Derived pTau217 Assays

Alamar Biosciences logo
Stacks of cell culture dishes, plates, and flasks with pink cell culture medium on a white background.

Driving Innovation with Cell Culture Essentials

Merck
December digest cover image of a wooden sculpture comprised of multiple wooden neurons that form a seahorse.
December 2025, Issue 1

Wooden Neurons: An Artistic Vision of the Brain

A neurobiologist, who loves the morphology of cells, turns these shapes into works of art made from wood.

View this Issue
Alzheimer: Phosphorylation of Tau proteins leads to disintegration of microtubuli in a neuron axon stock photo

Advancing Alzheimer’s Disease Detection with Brain-Derived pTau217 Assays

Alamar Biosciences logo
Stacks of cell culture dishes, plates, and flasks with pink cell culture medium on a white background.

Driving Innovation with Cell Culture Essentials

Merck
Stacks of cell culture dishes, plates, and flasks with pink cell culture medium on a white background.

Driving Innovation with Cell Culture Essentials

MilliporeSigma purple logo
Human iPSC-derived Models for Brain Disease Research

Human iPSC-derived Models for Neurodegenerative Disease Research

Fujifilm

Products

Beckman Logo

Beckman Coulter Life Sciences Introduces the Biomek i3 Benchtop Liquid Handler, a Small but Mighty Addition to its Portfolio of Automated Workstations

brandtech logo

BRANDTECH® Scientific Announces Strategic Partnership with Copia Scientific to Strengthen Sales and Service of the BRAND® Liquid Handling Station (LHS) 

Top Innovations 2026 Contest Image

Enter Our 2026 Top Innovations Contest

Biotium Logo

Biotium Expands Tyramide Signal Amplification Portfolio with Brighter and More Stable Dyes for Enhanced Spatial Imaging