Aneurysm: Why some brain blood vessels weaken without warning

Brain aneurysms are among the most frightening and unexpected medical situations. Because they often display no symptoms before rupturing, brain aneurysms have been referred to as a 'silent threat.' An aneurysm happens when a blood artery in the cerebral cortex has a weak spot that causes the vessel to swell outward like a balloon. Even while most of these aneurysms will go undetected for years, a ruptured aneurysm can result in potentially fatal brain hemorrhage. The fact that most people will not exhibit any overt signs when this kind of illness is starting to develop makes treating aneurysms extremely difficult. This raises further significant questions about the cause or causes of these...