Physical education is a unique aspect of education in that it provides the only. instruction for students in the development and maintenance of positive attitudes, essential knowledge and physical skills. The contribution of physical education is to.
1 Kidney disease can cause a build-up of nitrogen waste products in the blood, which can damage nails. 2  Liver disease can damage nails.  Thyroid diseases such as hyperthyroidism or hypothyroidism may cause brittle nails or splitting of the nail bed from the nail plate (onycholysis).
Stress causes brittle nails. Fragile nails cause many problems. They can break, split, and crack. Not only they look ugly, but they are non functional. Try to pry open a can, peel of the sales sticker from those new shoes or even have a cat fight.