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).
By Dr. Sarah Voelkel. KyForward columnist. A podiatrist sees many different nail conditions on a daily basis and a common concern of patients are dry and brittle nails. Nails are mainly composed of keratin, a protein made by the nail root. Several things can cause slower production or destroy keratin causing dry and brittle nails. â¢ A common cause is aging.