3.2 RESEARCH DESIGN Burns and Grove (2003:195) define a research design as âa blueprint for conducting a study with maximum control over factors that may interfere with the validity of the findingsâ.
MotherNature.com states that weak nails can mean there are problems elsewhere in the body. Psoriasis, a condition of the skin that can lead to itching, can cause weak nails. Hyperthyrodism, which is an overactive thyroid gland, can also cause weakness. Anemia may also contribute to weak nails. In addition, it can signal a calcium deficiency.
A calcium deficiency can lead to weakened nails. Nails that are weak often grow much slower than a healthy nail. They are very thin and are prone to excess peeling and splitting. Because they are not thick enough to withstand impact, weak nails often break during everyday activities.