While there is no definitive cause of migraine known to scientists, it is usually seen after a change in weather conditions, stress, missing a meal etc. Alcohol and certain types of food items, suppression of urges and exposure to sunshine of prolonged period – are also considered to be common causes for Migraine. Many women claim that their menstrual periods seems to be a major trigger. Additionally, allergic reactions, exposure to loud noises or certain smell, smoking, or long exposures to TV or computer screen could lead to Migraine attacks.