You have 3 different types of muscle: skeletal, smooth, and cardiac. Skeletal muscle alone accounts for over 650 different muscles. Have you ever wondered how many muscles you have in your body? The ...

Muscle contraction is the tightening, shortening, or lengthening of muscles when you do some activity. It can happen when you hold or pick up something, or when you stretch or exercise with weights.

When you think of training your upper body, your mind likely jumps to muscles like the biceps, triceps, shoulders, and chest. Yes, these are all so important for a strong bod. But your routine may be ...