Coffee houses, coffee cake, coffee break are all words coined to accommodate the addiction to this brew. You don't have to be an ex-alcoholic to consume that much. Many opposed to alcohol on religious principles see no wrong in drinking this beverage which can be just as addicting and health-destroying as alcohol. The answer is headaches, fatigue, stomach pains, etc. The major addictive factor in coffee is caffeine, a white crystalline alkaloid that stimulates the brain and artificially lessens fatigue.
Caffeine is a poison.
Injected into human muscles, it will cause paralysis. 10 grams of caffeine accumulated suddenly in the human body would result in death. Coffee ingested in the common manner is not fatal, since the kidneys work overtime to eliminate this toxin and prevent its accumulation. After one or more cups of coffee, the stomach temperature rises 10 to 15 degrees. The heart beats faster and the lungs work harder.