Skip to content
  • Happy Health
  • Happy Mindset
  • Animal Wonders
  • About Us
    • Team
  • Subscribe
Menu
  • Happy Health
  • Happy Mindset
  • Animal Wonders
  • About Us
    • Team
  • Subscribe
Happy News

Scientists Just Proved For The First Time That Human Hearts Can Repair Themselves After A Heart Attack

For decades, medicine has operated on a widely accepted assumption: when a heart attack destroys heart muscle cells, they are gone permanently, replaced by scar tissue, with no hope of natural repair. A landmark study from the University of Sydney, the Baird Institute, and the Royal Prince Alfred Hospital has now overturned that assumption for the first time in human patients, demonstrating that heart muscle cells do in fact begin to regrow and divide after a heart attack, a process previously observed only in mice. The researchers collected living tissue samples directly from the hearts of patients who had recently experienced heart attacks, a breakthrough technique in itself that allowed them to study the human heart’s response in real time rather than in postmortem tissue. What they found was that the heart was actively dividing muscle cells in the damaged areas, a biological response to injury that had simply never been detected before.

The study, published in the journal Circulation Research, found that a heart attack can destroy up to a third of a heart’s cells, and while the regeneration occurring naturally is not enough on its own to prevent the damage that leads to heart failure, the finding opens a clear scientific direction: if the heart is already trying to repair itself, researchers can potentially develop treatments that amplify and accelerate that process. The team also identified specific proteins involved in driving this cell division, giving scientists a concrete molecular target to work with. The lead author said that until now medicine had assumed damaged areas were irreparably lost, leaving the heart less able to pump blood to the body’s organs, and that this discovery fundamentally changes what researchers believe is possible. The goal, the senior author said, is ultimately to use this finding to make new heart cells that can reverse heart failure entirely.

Source: https://scitechdaily.com/world-first-study-reveals-human-hearts-can-regenerate-after-a-heart-attack/

PrevPreviousHe Was One Of The First People To Get A Pig Kidney And His Story Traces The Golden Age Of Transplant Medicine
NextThe Supreme Court Just Stepped In To Preserve Mail Access To The Most Common Abortion Medication In The USNext

Recent Articles

Happy News

For The First Time In History Medicare Is Covering Weight Loss Drugs And The Price Is $50 A Month

May 14, 2026

Starting July 1, 2026 eligible Medicare enrollees will be able to access GLP-1 weight loss medications including Wegovy, Zepbound, and the newer drug Foundayo for a flat $50 monthly copay, in a historic first for the program, which has never before covered anti-obesity medications despite covering many of the serious

Read More
Happy News

Swedish Scientists Just Grew The Cells Type 1 Diabetes Destroys From Scratch

May 13, 2026

Scientists at Karolinska Institutet and KTH Royal Institute of Technology in Sweden have developed a more reliable method for growing insulin-producing cells from human stem cells, and the results published in Stem Cell Reports represent one of the most encouraging steps yet toward a potential treatment for type 1 diabetes.

Read More
Happy News

New Research Reveals The Personality Trait That Predicts Whether You Will Seek Out A Cat When Stressed

May 12, 2026

A study published in the journal Anthrozoös, conducted by researchers at Washington State University and KU Leuven in Belgium, has identified the personality trait most likely to predict whether someone will seek out a cat for stress relief rather than a dog, and the answer has a name: emotionality. Researchers

Read More
« Previous Next »
  • Privacy Notice
  • Accessibility Notice
  • Do Not Sell or Share My Personal Information
  • Unsubscribe
  • Terms and Conditions
  • Privacy Policy
  • Privacy Notice
  • Accessibility Notice
  • Do Not Sell or Share My Personal Information
  • Unsubscribe
  • Terms and Conditions
  • Privacy Policy
Copyright © 2026 HappyNews.