A migraine is typically a disabling, recurrent headache that affects approximately 20% of women and 7% of men during their lifetimes. Migraines may also produce nausea, vomiting, and light sensitivity. Most people who suffer from migraines (which means “half a head”) associate some causal factor as a trigger for their migraine. Triggers can be singular or multiple in nature. Foods and other environmental factors may be triggers. Hormonal fluctuation associated with menstrual cycles or birth control pills as well as other medications can be triggers. Some types of migraines are genetic and are passed down through families.