DEFINITION of 'Commodity'. 1. A basic good used in commerce that is interchangeable with other commodities of the same type.
Brain Aneurysm Symptoms & Signs. A brain aneurysm is a bulging area within the wall of an artery that supplies the brain. In most cases, brain aneurysms do not produce symptoms. In some cases, the aneurysm may cause symptoms by pushing on other areas of the brain. Depending on the size of the aneurysm and the area involved, these symptoms can include headaches, neck pain, blurred vision, and speech changes.
Symptoms. Most people with aortic aneurysms, especially ones in the chest area (thoracic aortic aneurysms), do not have symptoms. But symptoms may begin to occur if the aneurysm gets bigger and puts pressure on surrounding organs. If an aortic aneurysm bursts, or ruptures, there is sudden, severe pain, an extreme drop in blood pressure, and signs of shock.