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).
Lack of vitamin A, vitamin C and calcium can cause dry, brittle nails. Be sure to take a multivitamin and calcium supplements daily. Also be sure to eat a protein and calcium rich diet. soothing cuticle cream like Burt's Bees Lemon Butter Cuticle Creme helps nourish dry cuticles and brittle, damaged nails with vitamin E. Massage the cream into and around your nails nightly before going to bed.