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.
The nail matrix is what's under the base portion your fingernail, where the cuticle is. The cells in the nail matrix manufacture a protein called keratin, which is what makes up your nails. As the proteins build up on top of the matrix, new ones push the older ones forward and out, which is what causes the nail to grow. The forward portion of skin under the nail is the nail bed. This part doesn't grow new nail, only the matrix, which is farther back. The nail on the nail bed is attached to the epidermis (outermost layer of skin), which is only a few cells thick. The epidermis is carried along with the nail as it grows.