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 Fingernails. Finger nails are made up of layers of keratin, a type of protein. New cells grow beneath the cuticle, causing old cells to harden and compact. The old cells then grow out toward the fingertips. But as MotherNature.com says, most people do not have the perfect fingernails that we see in magazines.