Logan County is a county located in the state of Ohio, United States. As of 2000, the population was 46,005. The county seat is Bellefontaine. 6 The county is named for Benjamin Logan, who fought Native Americans in the area.
Stress is the most common headache trigger, affecting most people at some point in their lives. Physical or emotional stress, including major life events, can bring on headaches and sometimes migraines.
The nitrites used in explosives can trigger a headache in susceptible persons who are employed in munitions plants. Smoking can provoke or intensify a headache; it can cause biological changes in the blood and blood vessels. Just being in a smoke-filled environment can provoke a headache in susceptible persons. Strong perfume and loud and irritating noises can also precipitate migraine headaches in some migraine sufferers.