Changing schools or jobs requires a great deal of adaptation, resulting in difficulty for the migraine sufferer. Travel may provoke migraine headaches because of the change in routine or diet as well as the new environmental and atmospheric conditions. Many migraineurs are sensitive to travel and seasickness. The jarring motion of a car, train, or boat can trigger a headache. A change in sleep pattern or activity level may change the frequency of migraine attacks.
Many migraine sufferers are very sensitive to light, especially to glare.
It is believed that some people have more excitable brain cells in response to light than others. A dazzling, flicker type of light can be found in light reflected on snow, sand, or water, or through clouds. Some fluorescent lighting or the light that flickers from television and movie screens may have a similar effect. The use of polaroid lenses in these glaring conditions can be helpful. Certain fumes and vapors can cause the blood vessels of the susceptible person to swell and dilate, triggering a migraine headache.