Various precipitants of migraine events have been identified, as follows:
-Hormonal changes, such as those accompanying menstruation (common), pregnancy, and ovulation
-Medications (eg, vasodilators, oral contraceptives)
-Excessive or insufficient sleep
-Stress
-Smoking
-Exposure to bright or fluorescent lighting
-Strong odors (eg, perfumes, colognes, petroleum distillates)
-Head trauma
-Weather changes
-Motion sickness
-Cold stimulus (eg, ice cream headaches)
-Lack of exercise
-Fasting or skipping meals
-Red wine
