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 medical term for this condition is onychoschizia if the splitting is horizontal and onychorrhexia if the splitting is longitudinal. The two conditions together are referred to as brittle nail syndrome. There are many causes of weak brittle nails ranging from benign to more serious. The most common cause is frequent exposure to water as in washing dishes, cleaning, swimming, etc. as the process of wetting and drying causes the nails to become brittle.