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.
Causes for different types of dark lines in fingernails. A thin, flimsy nail is also caused by a diet B12 insufficiency. Vertical ridges might be the results of in adequate diet and nutrient absorbency, and even kidney issues. But vertical ridges are very standard of negative circulate in problems such as rheumatoid arthritis.