Light does more than help us see. It also provides biological signals that influence alertness, sleep, hormone production, and the activity of cells throughout the body. The growing conversation around blue light has raised important questions about screens, LED bulbs, and the amount of time we spend indoors. At the same time, researchers are investigating whether red and near-infrared wavelengths may have beneficial effects through a process called photobiomodulation. The sc

Few supplements have generated as much attention—or as many misconceptions—as creatine. Once viewed primarily as a bodybuilding product, creatine is now being studied for healthy aging, cognitive performance, recovery and the preservation of muscle. Creatine is often called “the most studied supplement.” More accurately, creatine monohydrate is one of the most extensively researched—and consistently effective—ingredients in sports nutrition. But recent interest raises a new q