They can run vertically from the cuticle to the tip of the nail (known as longitudinal ridges) or horizontally across the ...

Our fingernails are our version of animals’ claws, made from the same substance – keratin – as our hair, and the hooves and ...

IF YOUR FINGERNAILS LOOK PALE, IT COULD BE A SIGN OF IRON DEFICIENCY. IF YOU HAVE VERTICAL RIDGES ... LOOK FOR HORIZONTAL RIDGES. THOSE ARE RIDGES THAT ARE ACROSS THE NAIL BED AND THOSE CAN ...

2023 — Neuroscientists have shown how vitamin D deficiency affects developing neurons in the brain's dopamine circuit, which may lead to the dopamine dysfunction seen in adults with ...