Which exercises are most effective for your pecs? What to know.

A muscle strain happens when a muscle is overstretched or torn, often from poor conditioning, fatigue, or skipping a warmup. Common spots include the lower back, neck, shoulder, and hamstring. The ...

A muscle strain (pulled muscle) happens when muscle fibers overstretch, causing sudden pain, swelling, weakness, or bruising. Strains often affect the lower back, neck, shoulders, or hamstrings.

Achieving strong, defined arms or legs is about more than just lifting weights. A ton goes into growing your muscles—and that includes proper nutrition, recovery, and working out in a specific way.

Non-muscle myosin II (NM II) is a hexameric actin-binding protein that is formed of two heavy chains, two essential light chains and two regulatory light chains. Its conformation and function are ...

The Godfather of Bodybuilding' Charles Glass shared his chest fly variation that offers a better contraction on the upper ...

You can build muscle while in a calorie deficit by eating enough protein and doing resistance training. Eating protein helps preserve lean muscle mass, which is important when trying to lose weight. A ...

Myasthenia gravis (MG) is a chronic autoimmune disorder in which antibodies destroy the communication between nerves and muscle, resulting in weakness of the skeletal muscles. Myasthenia gravis ...

Always ask your healthcare provider before starting a new exercise routine after surgery. Start exercising once your doctor says it's okay to help your body heal. Drink water before, during, and after ...