What’s with the headache after drinking?

Special headache after drinking alcohol may be related to arterial vasodilation, high blood pressure, dehydration and other factors.
1. Arterial vasodilatation: Alcohol can dilate the arterial blood vessels, so that the cerebral blood flow is lowered, you may have a headache, dizziness and other symptoms.
2. Hypertension: Norepinephrine released by the body of patients with a history of high blood pressure after drinking alcohol will increase blood pressure, and patients will experience headache symptoms.
3. dehydration: alcohol concentration is higher than the osmotic pressure of the body, the body needs a lot of water to process alcohol after ingesting alcohol, if the body does not have enough water, it will lead to dehydration, including brain dehydration, which will cause headaches.
Headache after drinking alcohol need to rest more, drink more water, have a history of high blood pressure need to strictly abstain from alcohol, headache severe people need to see a doctor as soon as possible.