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.
Lipstick lines, smokers' lines, vertical lines -- call them what you will, lip lines are one of the signs of aging you'd rather not have to deal with. Along with crow's feet and sagging neck skin, they're a dead giveaway that you're not really 29.