Here are 15 things that you should know about caffeine.
Caffeine is a biochemical occurring in 15 different plants. It is extracted by pressure cooking the beans with CO2. Annually, 12,000 tons of caffeine is consumed in the form of coffee, tea and other beverages.
Caffeine increases your dopamine levels and reduces your adenosine receptors that keep you happy and alert. It is very useful in increasing sports endurance in athletes.
On the other hand it can also cause frequent urination, insomnia and diarrhea. Overdose is lethal. It is addictive and causes headaches, tiredness, depression and irritability when stopped. Most of the caffeine is consumed in the form of coffee.