Photobiomodulation is a biological phenomenon induced by exposure to near-infrared light. The working mechanism involves the activation of mitochondria, essential cellular components responsible for energy production. This activation leads to the production of ATP, nitric oxide (NO), and reactive oxygen species (ROS), each with positive downstream effects. While the cellular mechanisms are still under research, photobiomodulation has shown efficacy in treating various conditions, from wound healing to improved brain function. To contribute to this understanding, we conduct clinical trials on the treatment parameters of near-infrared light. The first trial demonstrated significant effects on resting heart rate and immune parameters. The results are published in scientific journals.