Your Cells: The Body’s Microscopic All-Stars

Your cells are tiny living units that work together to keep your entire body alive, energized, and protected. The human body has around 37 trillion cells, each one built to carry out a specific task—carrying oxygen, fighting germs, sending signals, building tissues, and helping you grow.

Even though each cell has its own specialty, none of them work alone. Together, they create every organ, every movement, every thought, and every heartbeat. Think of your cells as the ultimate backstage crew: red blood cells deliver oxygen, neurons carry messages, muscle cells create movement, immune cells defend you, and skin cells form your protective shield.