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.
Weak and brittle nails that can easily become cracked or chipped are a common problem affecting both men and women. There are three main factors that cause brittle nails â aging, long-term use of nail polish and frequent exposure to water. Brittle nails can also be associated with some diseases, such as hyperthyroidism, hypothyroidism, lung conditions, psoriasis, lichen planus, alopecia areata, eczema, anemia, fungal infection, and endocrine disorders.