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 failure to consume an adequate amount of nutrients can cause flaky and weak nails. Certain nutrients in particular can affect nail health. An iron deficiency, which is more common in women with heavy menstrual periods or people who use ibuprofen excessively, is an essential nutrient needed to produce healthy nails.