Al Mayadeen English

  • Ar
  • Es
  • x
Al Mayadeen English

Slogan

  • News
    • Politics
    • Economy
    • Sports
    • Arts&Culture
    • Health
    • Miscellaneous
    • Technology
    • Environment
  • Articles
    • Opinion
    • Analysis
    • Blog
    • Features
  • Videos
    • NewsFeed
    • Video Features
    • Explainers
    • TV
    • Digital Series
  • Infographs
  • In Pictures
  • • LIVE
News
  • Politics
  • Economy
  • Sports
  • Arts&Culture
  • Health
  • Miscellaneous
  • Technology
  • Environment
Articles
  • Opinion
  • Analysis
  • Blog
  • Features
Videos
  • NewsFeed
  • Video Features
  • Explainers
  • TV
  • Digital Series
Infographs
In Pictures
  • Africa
  • Asia
  • Asia-Pacific
  • Europe
  • Latin America
  • MENA
  • Palestine
  • US & Canada
BREAKING
Russian Ministry of Defense: 37 Ukrainian drones destroyed in 4 hours over regions of Russia and the Black Sea.
Sheikh Qassem: Our supporters make up more than half of Lebanon's population, and all of these people are united under the banner of protecting Lebanon, its Resistance, its people, and its integrity.
Sheikh Qassem: There will be no phased handing in of our arms. [The Israelis] must first enact the agreement before we start talking about a defensive strategy.
Sheikh Qassem: Be brave in the face of foreign pressures, and we will be by your side in this stance.
Sheikh Qassem: Stripping us of our arms is like stripping us of our very soul, and this will prompt us to show them our might.
Sheikh Qassem: We will not abandon our arms, for they gave us dignity; we will not abandon our arms, for they protect us against our enemy.
Sheikh Qassem: The US efforts we are seeing are aimed at sabotaging Lebanon and constitute a call for sedition.
Sheikh Qassem: If you truly want to establish sovereignty and work for Lebanon’s interests, then stop the aggression.
Sheikh Qassem: The United States, which is meddling in Lebanon, is not trustworthy but rather poses a danger to it.
Sheikh Qassem: The United States is preventing the weapons that protect the homeland.

Here's why hair turns grey

  • By Al Mayadeen English
  • Source: Agencies
  • 20 Apr 2023 15:55
3 Min Read

The mechanism was investigated by the New York University (NYU) team using mice, whose fur color is determined by the same cells.

  • x
  • A man with grey hair using his phone (AFP)
    A man with grey hair using his phone. (AFP)

By pointing to pigment-producing cells that lose the capacity to mature, US researchers think they may have discovered why hair becomes grey with age.

The arrested development affects immature cells which would otherwise have evolved into melanocytes which provide hair with its natural color.

The mechanism was investigated by the New York University (NYU) team using mice, whose fur color is determined by the same cells.

They suggest that the research could serve as a foundation for reversing the greying process.

The study of melanocytes may also aid in the understanding and treatment of some malignancies and other diseases, as per the British Association of Dermatologists (BAD).

Here's what you should know

Hair follicles, which are located in the skin and are home to melanocytes, the cells that produce pigment, are where new hair grows.

Related News

New study shows pancreatic cancer may finally have a cure in process

FBI's DNA database expanding at a record pace: The Intercept

Melanocytes also continually die and regenerate. Stem cells are used to create new ones, and it's thought that in persons with grey hair, these stem cells get "stuck" in limbo.

The cell aging process was investigated by the NYU Langone Health team using specialized scanning and lab methods.

A growing percentage of the melanocyte stem cells become ineffective at their work as hair ages, sheds, and then grows back continuously.

The stem cells become stuck and cease moving throughout the follicle, failing to develop into fully developed melanocytes. The absence of pigment causes the hair to become silver, white, or grey.

The possibility that greying hair might be a partially reversible process has been raised by scientists before.

Premature greying may have several causes, some of which are curable.

According to some researchers, stress may be a factor in the whitening of human hair, and it has been hypothesized that reducing anxiety may temporarily restore color.

Other studies argue that heredity, or our DNA, may have a role in when we start to get older.

"The recent study in mice adds to our understanding of the hair follicle and how the pigment-producing cells function. We are already discovering more about the potential of stem cell therapies for conditions including hair loss and studies such as this one, with new findings about the color-producing cells, may lead to an array of future treatment options for our patients," said Yusur Al-Nuaimi from the British Hair and Nail Society.

Read more: Beethoven's Hair DNA decoded to study his health issues

  • DNA
  • NYU
  • Melanocytes
  • grey hair

Most Read

Tom Artiom Alexandrovich, executive director of the defense division of the Israeli National Cyber Directorate, undated (Social media)

Israeli-born US prosecutor drops Israeli officer child sex crime

  • Politics
  • 19 Aug 2025
Almost instantly after the Helsinki Accords were signed, organisations sprouted to document purported violations, whose findings were fed to overseas embassies for international amplification. (Al Mayadeen English; Illustrated by Zeinab el-Hajj)

How ‘Human Rights’ became a Western weapon

  • Opinion
  • 23 Aug 2025
Israeli soldiers stand on the top of armoured vehicles parked on an area near the Israeli-Gaza border, as seen from southern Israel, Wednesday, Aug. 20, 2025 (AP)

Palestinian fighters target Israeli soldiers, vehicles in Gaza

  • Politics
  • 21 Aug 2025
Launch of a ballistic missile from Yemen toward the occupied Palestinian territories. (YAF military media)

Yemeni Forces announce firing hypersonic missile at Al-Lydd Airport

  • Politics
  • 22 Aug 2025

Coverage

All
The Ummah's Martyrs

Read Next

All
Israeli Prime Minister Benjamin Netanyahu speaks during a press conference at the Prime minister's office in al-Quds, Occupied Palestine, Sunday, Aug. 10, 2025 (AP)
Politics

Netanyahu deliberately derailing truce with Gaza occupation: Hamas

Irish President Michael Higgins arrives to deliver his speech during a 42nd World Food Day celebration at FAO headquarters in Rome, on Oct. 16, 2023. (AP Photo/Alessandra Tarantino)
Politics

Irish president renews call for UN military intervention in Gaza

US Ambassador to Turkey and Special Envoy to Syria Tom Barrack speaks during an interview with The Associated Press at the US Embassy in Aukar, northern suburb of Beirut, Lebanon, Monday, July 21, 2025 (AP)
Politics

US envoy, Netanyahu discuss restraining attacks on Lebanon, withdrawal

Smoke billows following Israeli airstrikes in multiple areas in Sanaa, Yemen, Sunday, Aug. 24, 2025 (AP)
Politics

Ansar Allah vow sustained Gaza support despite Israeli strikes

Al Mayadeen English

Al Mayadeen is an Arab Independent Media Satellite Channel.

All Rights Reserved

  • x
  • Privacy Policy
  • About Us
  • Contact Us
  • Authors
Android
iOS