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3 results for “mud color”
- The Perpetually Curious! › Canonical › Biology & HealthArticle
☀️ Sunlight, Skin, and the Quiet Alchemy of Vitamin D
From section: 🧬 Skin tone and the filtering of lightHuman skin contains melanin, a pigment that contributes to skin color and helps protect underlying tissues by absorbing ultraviolet radiation and dissipating much of its energy. Because melanin also attenuates UVB, it can reduce the amount that reaches 7-dehydrocholesterol in the deeper layers of the epidermis.
- The Perpetually Curious! › Canonical › Biology & HealthArticle
🟤 Small Islands in the Skin: Why Moles Form and Why Most Stop Growing
… They are therefore more than areas where the skin happens to contain extra pigment. Their visible color may draw our attention, but underneath is a story of cell growth, development, genetic change, tissue architecture, and biological restraint.
- The Perpetually Curious! › Canonical › Biology & HealthArticle
🌙 Little Moons at the Base of Our Nails: The Quiet Science of the Lunula
From section: 🩺 What the lunula may reflect about healthSome studies have described enlarged lunulae in association with certain thyroid conditions, diminished or absent lunulae in individuals with anemia or malnutrition, and color changes in the lunula in some circulatory or metabolic disorders.