Researchers discovered a new class of fine hairs in mice called vellus-like hairs. These hairs are like the short, soft hairs on human skin, often called peach fuzz. The team also found a group of neurons that connect to those hairs.
In mice with chronic skin inflammation, animals with the touch-sensitive neurons scratched normally. Mice without those neurons or with inactive neurons scratched much less. The researchers stroked the hairs with a small loop of thread and also used blue light to activate the neurons. The tests showed these neurons cause mechanical itch and may be a target for new treatments.
Difficult words
- hair — thin thread-like growth on skinhairs
- vellus-like — short, soft hair like peach fuzz
- neuron — cell that sends signals in the bodyneurons
- chronic — lasting a long time or repeating
- inflammation — body reaction that causes redness and pain
- mechanical — caused by physical touch or movement
- activate — cause to start working or acting
Tip: hover, focus or tap highlighted words in the article to see quick definitions while you read or listen.
Discussion questions
- Have you ever had an itchy spot and scratched it? What did you feel?
- Do you think finding these neurons could help new skin treatments? Why or why not?
Related articles
Western Pacific priorities as WHO adapts after US withdrawal
WHO regional director Saia Maʻu Piukala outlines challenges and priorities for the Western Pacific as the organisation adapts after the US withdrawal. Key events include the World Health Summit in Berlin (12–14 October) and the Fiji Regional Committee (20–24 October 2025).
How social media in China shapes eating disorders
Online communities on platforms like Xiaohongshu use codes and posts that normalise strict eating and extreme thinness. Research shows more Chinese teenagers now show signs of eating disorders and experts say removal of posts is not enough.
Antibody and EGFR–STAT1 pathway point to new fibrosis treatments
Researchers at Yale found a human antibody that blocks epiregulin and lowers fibrosis markers. They also show EGFR activates STAT1 in fibroblasts, suggesting two treatment paths: block epiregulin or target the EGFR–STAT1 pathway.
