There are seventeen civil townships in Logan County. 1  Of these, none are urban townships, and no municipalities have been formed from former townships: 2  Bloomfield Township. 3  Bokes Creek Township. 4  Harrison Township. 5  Jefferson Township. 6  Lake Township.
Insufficient sleep is often cited as a trigger for acute migraine attacks. Excessive sleep is a frequently reported trigger as well. Jet lag and changes in your work schedule can also be linked to the onset of migraine. Insomnia is the most common sleep disorder associated with chronic migraine.
The exact causes of migraines are unknown, although they are related to changes in the brain as well as to genetic causes. People with migraines may inherit the tendency to be affected by certain migraine triggers, such as fatigue, bright lights, weather changes and others.