Your fingernails can say a lot about you, including whether or not you’re consuming enough vitamins and minerals. Getting insufficient amounts of certain B-complex vitamins can cause ridges in your fingernails. However, lack of certain minerals and protein, as well as various health conditions, can cause these lines in fingernails too.
Deficiencies in zinc, folic acid, iron and protein may cause fingernail ridges. The appearance of your nails may also indicate that you’re experiencing other health issues, like psoriasis or kidney problems. ~LivingStrong
Why do we have fingernails? They are not just on the tips of your fingers to beautify your hands but to protect and aid in your daily activities.
Nails serve several important purposes.
*The cuticle and proximal nail fold is often called “the cuticle” and is often cut as part of the manicure service. The cuticle should be removed by soaking the fingers in warm soapy water, and a cuticle remover used to help lift the sticky cuticle from the nail plate by pushing and lightly scraping(…yes) but not cutting.
Fingernail: A fingernail is produced by living skin cells in the finger. A fingernail consists of several parts including the nail plate (the visible part of the nail), the nail bed (the skin beneath the nail plate), the cuticle (the tissue that overlaps the plate and rims the base of the nail), the nail grooves (the skin folds that frame and support the nail on three sides), the lunula (the whitish half-moon at the base of the nail) and the matrix (the hidden part of the nail unit under the cuticle).
An appendage of the skin, this horny,translucent plate protects the tips of fingers and toes. The nail is composed mainly of keratin. A healthy nail should be whitish and translucent in appearance, with the pinkish color of the nail bed below showing through.