From the mysterious white flecks that sometimes appear on nails to unusual ridging or changes in thickness, what do these ...

Hapalonychia, commonly known as eggshell nails, is a chronic condition that causes the nails to become soft, thin, and weak. The nails typically feel very thin, like eggshells. Aging is a common ...

To investigate whether thinning in sensorimotor cortices is important in this disorder, Sowell et al. examined 25 children with Tourette syndrome (aged 7–18 years) and 35 age-matched and sex ...