Cafiene has some side effects you may not be aware of.
Forbes reports caffeine is similar to adenosine— a biochemical that works in the brain to modulate neuron function. The nervous system relies on this to regulate the brain.
Caffeine effectively blocks the function of adenosine. This results in the release of a pleasing combination of natural brain chemicals about a half-hour after drinking coffee. These include the feel-good pain-killer dopamine, the cell-exciter glutamate, the energy-boosting adrenaline, and the dopamine-enhancer serotonin.
Long-term use of caffeine causes more brain entropy, which is a good thing. Brain entropy is the process whereby the weaker, older brain cells die off and let the newer, younger ones take over. This results in faster signal processing, improved cognition, and better memory.
In general, coffee drinkers have an improved verbal IQ and stronger abilities when it comes to reasoning from this phenomenon. On top of that, daily use of caffeine may offer some protection against the decline in thinking ability as people get older.
The National Coffee Association says that Americans drink over 400 million cups of coffee each day. That is about 300 milligrams of caffeine per person. For those that like energy drinks, each one has up to 500 milligrams of caffeine, which is the equivalent of several cups of coffee.
It is obvious that people have a love for coffee and, some say, an addiction to caffeine. This may drive them to continue to take higher doses in order to have the same effect. Heavy coffee drinkers may even be able to go to sleep after drinking coffee because they have become so used to it.
In spite of all the benefits, the caffeine in coffee is a drug and a powerful brain stimulant. In fact, it is the most widely used psychoactive drug on the planet. It is not good for everybody. Many people suffer from insomnia that can be lessened by giving up caffeine, and in some cases, drinking too much coffee may cause the shakes.
Scientists are still researching the effects of caffeine and are looking for further evidence of harm. Nevertheless, it still remains our most popular drug, even when we have to drink more of it to get the same boost.