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.
Conditions we more often associate with skin, like psoriasis, can also cause brittle nails. Some companies sell vitamins that are meant to help strengthen nails, most notably using a b-complex vitamin called biotin, but there is very little evidence to suggest that these vitamins actually improve brittle nails.
The condition in which your nails split is known as onychoschizia, and this common problem can arise due to a variety of factors. One cause is malnutrition or a deficiency in vitamins or minerals, like iron. Your toenails can also split or become brittle due to trauma or repeated wetting and drying.