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.
Main Document. Information and facts on fingernails and toenails including nail fungus and nail color health indicators. Fingernails and toenails are made of a tough protein called keratin and include: Nail fold - A fold of hard skin overlapping the base and sides of a fingernail or toenail.