Epidural anesthesia is a regional anesthesia that blocks pain in a particular region of the body. The goal of an epidural is to provide analgesia, or pain relief, rather than anesthesia, which leads to total lack of feeling. Epidurals block the nerve impulses from the lower spinal segments. This results in decreased sensation in the lower half of the body.
Though it may be produced slightly differently, tamari is basically a type of soy sauce that is made without wheat. In other words, tamari is a type of soy sauce, but it is not exactly the same as regular soy sauce. See also: Shop online for tamari.
Other Japanese Soy Sauces: While tamari is made with more soybeans, shiro, or white soy sauce, is brewed with more wheat. It has a lighter color and flavor. It's typically used as a dipping sauce for sashimi made with mild, white-fleshed fish where a darker sauce would overpower and discolor the delicate slices.