August 30 is Frankenstein Day. The unofficial holiday celebrates the life and times of English author Mary Shelley who wrote one of the wordâs most read monster novel, Frankenstein, or The Modern Prometheus. Born on August 30, 1797, Shelley published Frankenstein in 1818 anonymously at the young age of 22.
There are three main causes for primary headaches: 1  Migraine-Migraine headaches can be caused by reduced blood flow to various areas of the cerebral cortex. 2  Symptoms of migraines include sensitivity to light and noise, nausea, vomiting and intense throbbing pain that is usually on one side of the head.
Migraine headache is a result of specific changes within the brain. It causes severe head pain that is often accompanied by sensitivity to light, sound, or smells. Other types of headaches can also cause severe pain, and not all headaches are migraines. For example, some people describe the pain of cluster headaches as the worst pain they have experienced. The exact cause of migraines is not known. Changes in neurotransmitter levels within the brain are thought to play a role.