Did you know the vertical lines on your forehead can reveal your personality? Metoposcopy is a fascinating practice that decodes your personality and hidden characteristics—all by examining the ...

(Gray News) - A brown line on a mother’s fingernail turned ... Subungual melanoma usually appears as a vertical streak on the nail and is most likely to develop in the big toe, thumb or index ...

(Gray News) - A brown line on a mother’s fingernail turned out to be a rare form of melanoma, according to the Cleveland Clinic. Lauren Koltcz, 45, said she noticed a brown streak on her thumbnail one ...