What causes migraines?

Blood flow changes?: The actual cause of migraine headaches is not known. The vascular theory says that changes in the size of blood vessels leading to the brain causes changes in blood flow, with increased flow causing pain. The neurovascular theory says changes in brain signals and brain activity cause blood vessels to change sizes, resulting in pain from increases in blood flow. Additional theories also exist.

Many causes: No short answer. Numerous theories. More recent evidents points to neurologic cause rather than vascular.

CAUSE and TRIGGERS: Migraines may be caused by changes in the brain/ trigeminal nerve=pain pathway. Serotonin (a brain chemical) imbalance may also play a role as serotonin levels drop during attacks. Many known triggers are noted: alcohol, cheeses, chocolate, msg, salty foods, 'diet sodas', 'skipping meals', 'lack of sleep', pms-homones, stress, strong odors, bright lights, physical exertion... Just to name a few.

Not known: While the cause for migraine is not known yet, it appears that the brain of migraine sufferers is different than those who do not get headaches. It seems that the migraine brain responds differently to stimulus in such a way as to cause incresed nerve activity leading to pain. While certain "triggers" appear to be responsible for headache onset, they are not proven. Migraine seems to be genetic.

See below: You may consult this site for info: https://www.mayoclinic.org/diseases-conditions/migraine-headache/symptoms-causes/syc-20360201 Wish you good health! - Have a diet rich in fresh vegetables, fruits, whole grains, milk and milk products, nuts, beans, legumes, lentils and small amounts of lean meats. Avoid saturated fats. Drink enough water daily, so that your urine is mostly colorless. Exercise at least 150 minutes/week and increase the intensity of exercise gradually. Do not use tobacco, alcohol, weed or street drugs in any form. Practice safe sex, if you have sex.

Migraine cause.: It’s a long story, but the main theory relates to how the nerves in the brain regulate the blood vessels in the brain. Now, if you’re having headaches and are just presuming them to be migraines, you should get a confirmation of that diagnosis by your doctor.