Always begin by checking the power steering fluid level because the steering pump is the heart of the power steering system. If the level is low, we could assume that the system is leaking fluid. Next, itâs important to check the color and viscosity of the fluid. Normal color is red or straw-colored.
In order to understand both how to keep your nails healthy and how they can act as an indicator of health problems, first you have to know that fingernails are made of layers of a protein called keratin. This protein is also found in your skin and hair [source: Mayo Clinic]. But your nails are more than just keratin.
Keratin is an extremely strong protein that is a major component in skin, hair, nails, hooves, horns, and teeth. The amino acids which combine to form it have several unique properties and, depending on the levels of the various amino acids, it can be inflexible and hard, like hooves, or soft, as is the case with skin.amage to the external layer of keratin can cause skin, hair, and nails to look unhealthy or flaky. Hair and nails on humans especially tend to become dry and brittle, because the dead keratin is being pushed to great lengths.