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.
If you donât have any of these health woes but have had weak nails for as long as you can remember, it could be genetic. If your mother has brittle nails thereâs a good chance youâre going to have them, too, Stern notes. Nailsâ absorbent nature also makes them susceptible to many external factors, all of which can cause them to break and split.