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.
Quick Answer. Dents can occur in fingernails due to underlying medical conditions, such as psoriasis, Reiter syndrome, incontinentia pigmenti and alopecia areata, according to EmpowHER. Fingernail dents can also be caused by vitamin deficiencies and thyroid imbalances. Continue Reading.