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).
Some of the causes of brittle nails are injury, infections, diseases, poisons, or medications. 1  Injuries to the nail from constant exposure to water or nail polish can cause them to become brittle and peel off. 2  Fungal, bacterial, and viral infections could cause your nail to get damaged.