Depending on which nerves are affected by peripheral neuropathy, you may notice some of these symptoms: 1  Change in sensation, especially in your hands and feet, such as numbness, tingling, or pain. 2  Muscle weakness, called myopathy. 3  Changes in organ function, resulting in constipation or dizziness.
Tea. Just like coffee, tea also contains the staining saboteurs known as tannins, so sipping on a cup of chamomile may lead to stains, Cram says. But thereâs even more to it than thatâlike the hue it turns your teeth, for instance. âGreen tea stains teeth gray, and black tea stains them yellow,â Maddahi explains. If green teaâs your go-to, he suggests investing in a high quality optionâthe lower the quality, the worse the stain itâll cause.
Brown and black stains on the surface of teeth. Teeth with black stains. Cause. Habitual smoking or drinking of dark-coloured beverages, such as tea or coffee, result in the food colours being adsorbed onto the tooth surfaces.