Caffeine in coffee boosts blood pressure in making alcohol out of the blood stream faster and also stimulate recovery from dizziness and headaches, too, so even darker, more bitter, the better it anyway.
Caffeine in coffee increase the pressure in the bloodstream causes the alcohol out of the flow. The blood faster, and to encourage recovery from symptoms muen and headaches better. Therefore, the more concentrated The more bitter, the better. However,
caffeine in coffee helps increase blood pressure, alcohol out of the current speed, and to stimulate blood recovered from his intoxicated state, and have a headache. So the more bitter, the better contrast, however, sir.