After having a hot cup of coffee you may often realize temporarily alertness, improve concentration and an increased performance while doing some task.
Some people easily get effects (negative as well as positive) of caffeine while others don’t even realize. If your friend claims that he can have all the coffee he wants to and don’t even realize any effect of it, you shouldn’t think that the effect of coffee and caffeine will be the same for you. Contrarily, you must listen to your body when it says no to another cup of coffee.
There are many researches that conclude, in healthy people, taking one to three cups of coffee in a day, don’t cause any negative effects. People that must avoid coffee include pregnant women, heart patients and children as caffeine, which is a vital content of coffee, can cause the worst effects on them.
