Hypericum perforatum, commonly known as St John's wort, has been used for centuries to treat nerve damage, sciatica and back pain. In more recent years, scientific research has supported use of Hypericum for other nervous system complaints, such as anxiety and depression.

Diabetes is on the rise. The number of people affected in the U.S. has tripled since 1980, with nearly 26 million Americans affected in 2011, according to the Centers for Disease Control and Prevention. Diabetes is a metabolic disease that can be managed with a combination of lifestyle changes, diet and medications.

Wheat intolerance is a general medical term that may reference either a wheat allergy or celiac disease. A wheat allergy is an immune system reaction that affects various parts of your body and could lead to life-threatening reactions.

The Lion's Mane mushroom, Hericium erinaceus, is a rare edible and medicinal mushroom that has been cultivated for use in Vietnam, China and Japan. While similar or related species of Lion's Mane can be found throughout North America, it is the Asian Lion's Mane species that is used for medicinal purposes.

Any time you have problems with your vision, get it checked out by an optometrist to diagnose the condition and prevent further damage. Spots on the back of the eye can be the result of an injury or disease and should be evaluated to prevent blindness, according to Medline Plus.

Acupuncture is a practice derived from traditional Chinese medicine, in which needles are inserted through the skin for therapeutic effect. According to the National Center for Complementary and Alternative Medicine, acupuncture is generally accepted as a safe treatment.

Managing diabetes effectively requires knowledge of the condition and the steps necessary to avoid complications. Blood glucose levels that are too high or too low for prolonged periods have detrimental effects on overall health and can lead to death. A diabetic seizure is a serious complication of this disease.

Nerve-damaged hands can occur for a variety of reasons including fractured wrists, carpal tunnel syndrome or congenital disorders. Symptoms can include hand weakness, tingling, pain and inability to properly use the hand.

Sinusitis is a rather irritating and in some cases even debilitating ailment. It can cause headaches and dizziness, as well as trouble breathing and feeling sick to your stomach. It is not uncommon to experience problems with the skin, particularly in the areas surrounding your sinuses, with sinusitis.

If you have diabetes, it's important to be familiar with diabetic ketoacidosis (DKA). DKA is a serious complication of diabetes that occurs when lack of insulin and high blood sugar lead to potentially life-threatening chemical imbalances. The good news is DKA is largely preventable.

Although your skin provides a layer of protection between your inner systems and the outside world, it can experience problems. Skin conditions, such as red bumps, may show up on any area of your body, including the tops of your feet.

The vagus nerve is one of 12 cranial nerves, exiting the skull rather than through the vertebral column. The vagus nerve is the tenth cranial nerve.