A headache is a symptom, not a cause. Generally they only cause pain, although in the most severe cases (migraines) they can cause vomiting and other problems.
No. Marijuna releases THC chemicals into the brain. These chemicals reduce intraocular pressure allowing the brain to depressureize. If one had a headache and chose to induce themselves with...
hormonal changes during a regular monthly cycle, caffeine, chocolate, sandwich meats, aged cheese, preservatives in foods, lack of or to much sleep, stress