While many people think of migraine attacks as little more than bad headaches, migraine is in fact a chronic condition whose symptoms can be far more debilitating than an ordinary headache. Migraine attacks are often accompanied by intense pain, difficulty thinking, changes in vision, dizziness, nausea, and increased sensitivity to light, noise, and smells. Furthermore, research has shown that migraine is among the most disabling disorders in terms of its long-term impact on quality of life, and it is extremely prevalent: 47 million Americans and over a billion people worldwide suffer from migraine, with attacks peaking during the most productive professional years (25-55 years old).