Executive summary Cortisol is not a “bad” hormone. You need it for energy, alertness, blood sugar control, and a healthy day-night rhythm. The real problem is usually poor timing, such as cortisol staying too high late in the day, when it can interfere with sleep and recovery. Photobiomodulation, or PBM, uses red and near-infrared light to influence cell function. In the 610–850 nm range, PBM may affect cortisol indirectly by improving mitochondrial energy production, nitric oxide signaling,...

The kidneys are among the hardest-working organs in the human body. Every day, they filter approximately 180 liters of fluid, helping regulate hydration, electrolyte balance, blood pressure, and the removal of waste products from the bloodstream. Although the kidneys account for less than 1% of total body weight, they receive approximately 20–25% of the body's blood supply and consume large amounts of energy every day to maintain fluid and electrolyte balance. Because of these extraordinary...

The liver is one of the most remarkable organs in the human body. Every minute, it performs hundreds of essential functions that help keep us alive and thriving. From processing nutrients and supporting metabolism to regulating energy production and filtering substances from the bloodstream, the liver works tirelessly behind the scenes to maintain balance throughout the body. Given its central role in health and wellbeing, researchers are increasingly interested in ways to support normal...