The primary reason for nails developing longitudinal ridges or splitting vertically is age, according to Mayo Clinic. These ridges that extend from the nail bed to the nail tip are generally harmless.Know More
Nails Magazine points out that longitudinal ridging, technically known as onychorrhexis, is often exacerbated by placing the hands in alcohol or water for long periods or by stress caused to the nails from typing or playing piano. Vertical splitting of the nails is an inconvenience, but it is not a health risk. However, it is sometimes associated with other skin conditions, including eczema and psoriasis.
There is some research to support taking biotin in order to strengthen brittle nails. Keeping nails regularly manicured diminishes the unattractive appearance of vertical splitting.Learn more about Human Anatomy
Fingernails grow from the root of the nail, pushing old cells out which flatten and harden, as new cells take their place. The flattened and hardened nail then slides along the nail bed, which is fed with minuscule blood vessels.Full Answer >
According to NHS Choices, blue fingernails are caused by low blood oxygen levels or poor circulation brought on by exposure to cold temperatures. This condition is called "peripheral cyanosis."Full Answer >
Fingernails bend easily if they are weakened by environmental damage, poor nutrition or illnesses. Healthy fingernails are supposed to be strong and firm and should not bend or break easily. A person with weak fingernails has a number of factors to consider in order to determine the exact cause.Full Answer >
Fingernails appear to turn gray or blue after a person dies because the blood, full of oxygenated red blood cells, no longer flows underneath the nail bed. The natural color of the nail then shows. The nails do not actually change color, because like hair, the nails are not living tissue. During life, only the nail root contains living cells.Full Answer >