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.
Possible Causes. Vitamin Deficiency. Dents in fingernails can be a sign of vitamin deficiency, especially of Vitamin B12. A diet that lacks in essential nutrients can lead to various nutritional deficiencies and dent in fingernails is a very frequent sign of these nutritional deficiencies.