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 buildup under toenails. Keratin is a type of protein that is found in hair, nail and the outer skin layers which makes nails strong and hard, but if a buildup of keratin occurs under the nails, it makes them discolored, brittle and deformed. Keratin buildup can also happen in the fingernails as well. Keratin is formed by the matrix of the nail. The matrix is the root of the nail that cannot be seen which is protected by the proximal fold of the nail. Keratin is a hard material that becomes soft with constant contact with moisture.