The Federal Center for Health Awareness that changes in the form and color of nails are sounding the alarm;
The change in the color of nails to yellow, brown or gray may be due to nail fungus or psoriasis.
Curvature or thickening of the nails may be due to heart, lung and liver diseases.
Thinning and shelling of nails indicate thyroid problems or a lack of minerals and vitamins such as calcium, iron, vitamin A and B, and vitamin B7 known as biotin.
Consult your physician immediately to determine the exact cause of these symptoms and to undergo timely treatment.