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).
Low moisture content in the skin causes dryness of nails, hands and cuticle. This can be brought about by use of hash products while washing, manual works and harsh environmental condition. Other that nail ridges, lack of moisture also causes cracked brittle nails, discolored nail beds and split cuticle.