The blinding headaches are poorly understood — a mouse study suggests that the content of spinal fluid is a trigger for pain. by Miryam Naddaf For one billion people worldwide, the symptoms can be debilitating: throbbing head pain, nausea, blurred vision and fatigue that can last for days. But how brain activity triggers these severest of headachesContinue reading “Healthcare Awareness Mondays: What causes migraines? Study of ‘brain blackout’ offers clues”