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).
the following medical conditions are some of the possible causes of brittle nails there are likely to be other possible causes so ask your doctor about your symptoms severe illness psoriasis lichen planus alopecia areata raynaud s disease hypothyroidism sjogren s syndrome