Kaylas Part

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The human body is a highly complex and intricate machine, consisting of an estimated 37 trillion cells that work together to sustain life. The brain, which weighs approximately three pounds, processes information at speeds of up to 268 billion bits per second, making it the most advanced computer on the planet. The heart pumps around 2,000 gallons of blood every day, while the lungs take in oxygen and expel carbon dioxide through a process called respiration. The digestive system breaks down food into nutrients that are absorbed by the body, providing energy for growth and repair.