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 What do muscles do in our bodies? What happens when they are weak? Muscles are tissues made up of more than 600 soft cells in the body, which help move and shape the body. There are three types of muscles: skeletal muscles, smooth muscles, and cardiac muscles, which respectively move voluntarily, automatically, and ensure the heartbeat. Muscles require a molecule called ATP to provide energy, and foods rich in protein, carbohydrates, fats, and vitamins keep muscles healthy. Just think, what would happen if our bodies did not have muscles? There would only be bones in our faces. We would probably look ugly and scary. We would not be able to move our arms and legs, we would not be able to stand or sit. It would be impossible to speak a word, blink an eye, or chew food. All this means that our life is not possible without muscles. From this, we can understand how indispensable muscles are to us. What is muscle? Muscle is a tissue made up of special types of cells, which are tight whe...