Answers common questions about human skin.

What does my skin do? -- Why does my skin flake? -- How thick-skinned am I? -- Why do I get sunburn? -- What are freckles? -- Why do I get red when I am too hot? -- What causes goosebumps? -- Why does my hair grow thickest on my head? -- Why do people have different colored hair? -- Why doesn't it hurt when I cut my nails? -- Which part of my skin is the most sensitive?.