@flexplained101: You think your muscles just bunch up? Think again! 🤯 Inside every fiber are billions of tiny “hands” (Myosin) pulling on “ropes” (Actin) to make you move. This is the secret behind every single flex! 💪 What’s your favorite muscle to train at the gym? Let me know in the comments! 👇 #Science #Fitness #Anatomy #Workout #Muscles