Rating Newest Oldest. Best Answer: The USS Gerald R. Ford will be the biggest in 2015, the Nimitz class are all roughly the same size, with the USS George H.W. Bush being the latest and last of the Nimitz class. USS Gerald. R. Ford. http://en.wikipedia.org/wiki/USS_Gerald_...
Caffeine works primarily in the brain, where it affects the function of neurotransmitters and exerts a stimulant effect. If you drink too much coffee in a short amount of time, you will experience symptoms mostly related to your brain and digestive system.
What Drinking Coffee Actually Does To Your Body. 1  The caffeine enters your bloodstream and quickly finds its way to your brain, where it works as a stimulant and boosts alertness and energy. 2  The downside is that drinking too much can cause insomnia. 3  Thatâs partially because caffeine stays in your system for hours and hours. The way we metabolize coffee is called a half-life, Hunnes says. In most people, caffeine's half-life is 4 to 6 hours. It takes about 6 hours to reduce the amount of caffeine in our blood by about 50 percent, she explains.