New Study: Light Therapy May Prevent Heart Disease

A new study from the University at Buffalo reveals promising results on how light therapy could protect the heart.
Researchers found that exposure to near-infrared (NIR) light improved heart health and longevity in mice.
If similar results appear in humans, this could mark a major step toward a non-invasive and drug-free treatment for heart disease.

Heart Disease and the Search for New Therapies

Heart disease remains the leading cause of death in the United States, responsible for one in five deaths.
Traditional treatments often rely on long-term medications that may cause side effects.
For this reason, scientists are exploring new, low-cost, and natural alternatives such as photobiomodulation (PBM) therapy.

What Is Photobiomodulation (PBM)?

PBM uses specific wavelengths of light—often near-infrared—to stimulate the body’s cells and healing processes.
It helps regulate inflammation, immune responses, and stem cell activity.
Earlier studies have shown PBM can speed up wound healing and even target cancer cells.
Now, researchers are testing its impact on heart function and aging.

The University at Buffalo Study

In the experiment, older mice were exposed to NIR light from LED lamps for only two minutes a day, five days a week.
Some of the mice were genetically modified to develop severe heart disease.
Without treatment, their expected survival rate was 43%.

However, the mice receiving light therapy achieved a 100% survival rate.
Their hearts did not deteriorate as expected, and the therapy delayed the onset of stroke, hypertension, and cardiac aging.

The Results Were Remarkable

The light-treated mice showed:

  • Improved heart function

  • Thicker, healthier cardiac walls

  • Better treadmill endurance

  • Enhanced neuromuscular coordination

These results suggest that even short daily light exposure can trigger major biological improvements.

Why Light Therapy Works

The study found that PBM stimulates the production of transforming growth factor beta (TGF-β).
This molecule plays a crucial role in controlling stem cell renewal, inflammation, and immune balance.
By activating these natural mechanisms, light therapy may help slow cardiovascular aging and improve overall health.

Next Steps: Human Trials

The researchers plan to move forward with controlled human trials.
According to Dr. Praveen Arany, associate professor of oral biology at the University at Buffalo,

“The idea was to see if intervention in middle age could help prevent further age-related heart deterioration.”

If confirmed, PBM could become an accessible, side-effect-free treatment for millions of people worldwide.

Light: The Medicine of the Future

Light has already been used to heal wounds, treat cancer, and improve mood.
Now, it may also help protect the heart—proving once again that light is not only an aesthetic element, but a source of health and vitality.

At Vitalux, we believe that the power of light goes far beyond illumination.
It is energy, therapy, and life itself.