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.
The following medical conditions are some of the possible causes of Constant headache. There are likely to be other possible causes, so ask your doctor about your symptoms. 1  Tension headache. 2  Refractive error. 3  Glaucoma. 4  Retinoblastoma. 5  Brain tumors. 6  Hypertension. 7  Meningitis.