When you drink coffee, caffeine will flow into the digestive system, then to the blood stream that will surely go to the brain. Caffeine travel to this brain usually reaches 30-45 minutes after you sip your coffee. When it comes to the br
When you drink coffee, caffeine will flow into the digestive system, then to the blood stream that will surely go to the brain. Caffeine travel to this brain usually reaches 30-45 minutes after you sip your coffee. When it comes to the br