What is the major function of the skin and how does it contribute to overall health and well-being?

The major function of the skin is to act as a protective barrier for the body, preventing harmful substances from entering and keeping essential fluids inside. It also helps regulate body temperature and sensation. The skin contributes to overall health and well-being by protecting against infections, regulating body temperature, and producing vitamin D when exposed to sunlight. Taking care of the skin through proper hygiene and skincare routines can help maintain its functions and promote overall health.