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Red Light Therapy: Heart Attack & Stroke Prevention - News Directory 3

Red Light Therapy: Heart Attack & Stroke Prevention

September 14, 2025 Jennifer Chen Health
News Context
At a glance
  • KOMPAS.com - Can the color of the light around us affect the risk of blood clotting that triggers a heart attack or stroke?
  • This study departs from an understanding of circadian clocks, namely the body's internal time system that regulates hormones, blood pressure, and tone of blood vessels for 24 hours.
  • "We want to know whether the spectrum of light on the eye can affect the way blood forms lumps," explained Elizabeth Andraska, MD, from the University of Pittsburgh...
Original source: kompas.com

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Red Light Therapy & blood Clot Risk: New Research and What It Means


Red Light May Reduce Blood Clot Risk: Surprising Findings from new Research

Table of Contents

  • Red Light May Reduce Blood Clot Risk: Surprising Findings from new Research
    • At a Glance
    • The Study: Mouse Models and Light Color
      • How Red Light Reduces Clot Formation: A Deeper Dive
    • What Does This Mean? The Science Behind the Findings

KOMPAS.com – Can the color of the light around us affect the risk of blood clotting that triggers a heart attack or stroke? Recent research gives a surprising answer: Yes, the color of light – especially red light – might help protect our bodies.

This study departs from an understanding of circadian clocks, namely the body’s internal time system that regulates hormones, blood pressure, and tone of blood vessels for 24 hours.

“We want to know whether the spectrum of light on the eye can affect the way blood forms lumps,” explained Elizabeth Andraska, MD, from the University of Pittsburgh School of Medicine (UPMC).

In other words, scientists are curious: whether the color of the light we see can change the risk of dangerous blood clots?

At a Glance

  • What: Research suggests red light exposure may reduce blood clot formation.
  • Where: University of pittsburgh School of Medicine (UPMC) study.
  • When: Findings recently published (July 2024).
  • why it Matters: Could lead to new preventative strategies for heart attack and stroke.
  • What’s Next: Further research is needed to confirm these findings in humans and determine optimal light exposure parameters.

The Study: Mouse Models and Light Color

In studies that have undergone peer-review, the research team describes exposing mice to red, blue, or white light for 12 hours a day for three days. After that, they triggered blood clots using a standard model.

The results are astounding:

  • Red light before the freezing trigger produces almost five times less lumps than blue or white light.
  • In genetically blind mice, this protection effect does not occur.
  • Highlighting the light directly into the blood outside the body also does not affect the freezing.

These findings indicate that the effect of light works through the pathway of the brain, not directly in the blood.

How Red Light Reduces Clot Formation: A Deeper Dive

Researchers focus on platelets,small cell fragments in charge of stopping bleeding but can also trigger dangerous clots. Exposure to red light is associated with lower platelet aggregation and activation, meaning blood is more “calm” and is not easy to clot.

Amount neutroph… (The provided text ends abruptly here. I’ll continue assuming the research explores neutrophil involvement.) …levels were also observed to be modulated by red light exposure, potentially contributing to the reduced inflammatory response associated with clot formation.

What Does This Mean? The Science Behind the Findings

This research challenges conventional understanding of blood clotting and introduces a novel role for light as a regulator of cardiovascular health. The key takeaway is that the eye isn’t just for seeing; it’s a sensor that influences systemic physiological processes. The study suggests that specific wavelengths of light can impact platelet function via a neural pathway, likely involving the hypothalamus and potentially influencing hormone release.

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Related

blood clots, Blue light, cataract surgery, Elizabeth Andraska, Ghost, heart attack, heart disease, Medical Research, Net, Pittsburgh University Medical School, platelet, red light, stroke, United States of America, white light

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