The name of the human body’s largest organ is the skin. The skin serves as a protective barrier for the body, covering and safeguarding internal organs, muscles, and bones from external elements such as bacteria, chemicals, and UV radiation. It plays vital roles in regulating temperature, sensing touch, and synthesizing vitamin D. Skin is made up of multiple layers, including the epidermis, dermis, and subcutaneous tissue, each with distinct functions. Maintaining skin health is crucial for overall well-being, involving hydration, protection from sun exposure, and proper nutrition.