This can lead to high blood pressure, which can cause other problems. Too much sodium in the blood is a condition called hypernatremia. Too little sodium in the blood is a condition called hyponatremia.
Craze lines are  minor cracks that are superficial and affect the outer enamel of the tooth only and are common in all adults. These lines do not cause any pain and hence no treatment is needed. They mainly occur due to the normal wear and tear on teeth.
Mees lines are an uncommon cause of white lines on the nails. They are tiny breaks in the nail, which move up the nail as it grows. Mees lines also run horizontally across the nail, but they may or may not extend the whole way from one side to the other. Mees lines do not disappear when the nail is squeezed.uehrcke Lines. In some instances, white lines on the nails appear as a pair of parallel lines that run horizontally across the nail, from one side to the other. These lines -- known as Muehrcke lines -- stay in the same place and do not move when the nail grows.