Muscle spasms are sudden involuntary contractions of one or more muscles and often lead to cramping. Some muscles are more prone to spasms, including the calf muscles and abdominal region. Causes include vitamin deficien... More »

The primary treatment for an acute muscle spasm is gently stretching the affected muscle, and further treatment varies depending on the underlying cause but may include a variety of medications, according to MedicineNet.... More » Health Pain & Symptoms

Symptoms of a heart muscle spasm include chest tightness, pain on the left side of the chest, a feeling of constriction and general chest pain, explains Healthline. Pain from a heart muscle spasm periodically spreads to ... More » Health Conditions & Diseases Cardiac Health

Muscle deterioration occurs due to the death of muscle cells and muscle tissues, resulting in a genetic disease called muscular dystrophy, according to Medical News Today. The disease causes progressive weakness and dege... More »

Muscle cell contraction begins when an excitatory neurotransmitter is released from the motor neuron in the cell. The neurotransmitter causes an action potential to propagate through the muscle cells, and contraction occ... More »

Muscle and fat do not have any inherent weight differences, as is popularly described. Five pounds of muscle weighs the same as five pounds of fat. However, the idea trying to be explained is true - it is a matter of den... More » Science Human Anatomy Muscles

Muscle growth transformation stories show how hard work and dedication can make dreams come true. These stories demonstrate how a clean diet and hard work in the gym can help positively change a person's body and mind, a... More » Science Human Anatomy Muscles