How well do you know your skin?
If you're like most people, you probably take your skin for granted, as people typically do with most of their body. Unless you're experiencing a health problem or physical problem, how often do you think about the functions of your different limbs, organs and muscles? Do you ever think about your lungs unless you're short of breath? Do you ever consider your heart unless it feels like it's going to pound out of your chest? Do you ever think about your eyes unless they're dry, watery, or unable to focus?
Most people give very little thought to the functions of the parts of their body until there's a problem, and skin is no exception. Unless it itches, is burning, needs covering, has broken out in acne splotches, has a rash, looks unattractive for some reason, is starting to sag or wrinkle, or is about to get a new tattoo, people rarely think about their skin, its health, its importance to other parts of the body, and what it does overall.