Migraine is a severe headache, often accompanied by nausea and visual disturbances such as blurred or loss of vision, light flashes and abnormal sensitivity to light. Its cause could be genetic or related to changes of blood flow and certain chemicals. Medicines can help prevent attacks or relieve symptoms. For many people, treatments to relieve stress can also help.
Source: GreenFacts
Deutsch: Migräne
Español: Migraña
Français: Migraine