It depends on how much caffeine you have. Caffeine increases the speed of your heart rate and it can cause heart problems. As you probably know, most adults drink Coffee when they are tired. Coffee contains caffeine. By drinking coffee (consuming caffeine) it increases your heart rate and speeds up your body, giving you a burst of energy. Hope this helped ;)
It makes it less sleepy.
It contains caffeine and caffeine is a drug that effects the body in various ways.
Caffeine and Nitric Oxide has extremely different effects on the body. The two do not cancel.
Caffeine will have absolutely no effects on unicellular organisms. They do not posses the correct receptors to activate the caffeine.
it effects the nervous system in some cases making the body have spasms
Nicotine and caffeine are called stimulants. They get the heart pumping and give you energy.
yes and no. yes, they can both make you hyper. no, your body already has sugar in it so you need a lot more sugar to be hyper. You don't need that much caffeine to get hyper.
Yes. Depending upon the body mass it can have even toxic effects.
the affects is that your body will stay active all day and night which could led to sleeping problems. I hope this helped you
No, the body does not need caffeine. People who are addicted to caffeine might think they need it, though.
Some harmful short term effects of caffeine are increased alertness, makes your heart beat faster ,makes you go to the toilet more ,raises your body temperature,makes your digestive system produce more acid.
If you meant, how much does the caffeine (from coffee) last in your system? Then the answer would depend on how tolerant you are to caffeine. People new to caffeine can have effects lasting 8-12 hours Regular consumers of caffeine will have effects lasting between 4-6 hours And hard users of caffeine will have effects lasting as little as 1-2 hours