lines and symmetries. Striped triangles, hexagons, or any abstract figures can be intermixed in black and white in different ...

A black line on your nail (medically known as melanonychia) causes a streak of dark pigmentation that runs along the nail bed ...

As people age, vertical nail ridges, known as onychorrhexis, can form due to nutritional deficiencies, anemia, digestive disorders, dehydration, and s ...