What Is the Psoas Muscle? The psoas (pronounced so-ezz) muscles are two large muscles in your lower back. You have one on either side of your spine. They're the main muscular connection between your ...

In a recent study published in Nature Communications, researchers examined the efficacy of a prebiotic in improving muscular and cognitive performance vs. a placebo among elderly individuals. As the ...

People who suffer from the autoimmune disease myasthenia gravis experience muscle weakness that can affect any of the muscles we use to blink, smile or even move our body around. Researchers have ...