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There're 90-105 mg of caffeine in 8oz of coffee. The body retains up to 300mg at any time. Of course that depends on how fast you drink the coffee, and how fast you can detox it. Depending on the person, it would last in the body 4-6 hours.

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โˆ™ 2012-09-19 04:40:24
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Q: How long does caffeine stay in your body after drinking 4 cups of coffee in the morning?
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How does caffeine enter the body?

- Drinking to much coffee or tea - Chocolate - Alcoholic Beverages - SODA!

What are the effects of caffeine on the body?

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 ;)

Why do you not feel sleepy after drinking coffee?

Coffee contains caffeine, which is a stimulant. Caffeine causes the adrenal glands to secrete more adrenalin, which causes the body to prepare for an emergency response, which of course, would require you to remain awake.

Is hot coffee good in the morning or in the afternoon?

Hot coffee is good in the morning because it not only gives the body a caffeine boost it also gives it a jolt of warmth. This helps the body wake up and gear itself up for the day.

Can coffee make you feel more hungry?

It won't stop hunger. Coffee is a diuretic it pulls the water out of your body. The hunger you feel is from the caffeine and hose down lose. Caffeine makes your body burn more energy and the wet lose dehydrates your muscles. Try drinking more water and working out. But from my own experience, no. Coffee fills you up. Your basically drinking a meal. Coffee is a stimulant, it does what is said above.

Why do people drink coffee every morning whenever they get up from bed?

Caffeine is a drug that stimulates the body and some people need it.

Do drinking coffee makes you harm?

Coffee has caffeine in it, which does things to your body. Get too much of that and it's not good, get a normal dose and it really doesn't seem to matter much either way.

How does coffee get into the human body?

By drinking it.

Which is a better energenizer coffee or milo?

Between coffee or milo, coffee is the better energizer. However, if you're looking for a little extra jolt in your morning, try a cup of hot tea. It not only provides you with the caffeine you desire, but also with the antioxidants that your body needs. Having coffee can also lead to an addiction to caffeine, which coffee has a lot of. You can avoid the crash and addiction by drinking tea, which has far less caffeine and less negative health effects such as heart problems. Combine the tea with an energizing breakfast high in vitamin C and you'll have an excellent start to your day without the worry of a crash later.

Why is to much coffee bad?

It contains caffeine and caffeine is a drug that effects the body in various ways.

What effect does coffee have on urine?

caffeine acts as a diaretic for those who are not used to it, and by drinking it you will go pee more frequently throughout the day. for those who are used to it it will have no effect on the body

Why does apple juice affect your body similar to how caffeine does?

apples actually contain more caffeine then a coffee bean.

Is coffee bad for the body?

Yes, coffee is very bad for the body although everyone drinks it because it has caffeine and that gets extremely addicting. Coffee stunts growth.

How does drinking caffeine help athletes?

It wakens your body and gives you energy

How does coffee reach the brain after a cup of coffee?

The caffeine enters the blood stream and travels all over the body.

Is coffee or green tea safer during pregnancy?

Green tea, or even black tea, is considerably safer during pregnancy than coffee. The main reason for this is that tea is much lower in caffeine than coffee; coffee typically contains contains 2-4 times as much caffeine per cup as green tea. While small amounts of caffeine are perfectly safe during pregnancy, there is some evidence that heavy caffeine use may increase the risk of miscarriage or other problems. Drinking several cups of green tea a day is perfectly safe, but drinking the same amount of coffee is probably not a good idea. A single cup of coffee though is probably just fine. Don't worry too much! Green tea tends to be milder overall on the body than coffee, not just because of the caffeine, but because coffee can be harsher on your digestive system and is more acidic.

How Does the caffeine in tea affect the body differently than the caffeine in coffee?

There is no difference in the ways that caffeine from different sources will affect the body. The caffeine from tea will act the same as the caffeine from coke, chocolate, coffee, red bull, or any other caffeine-containing product. However, there are differing levels of other chemicals in tea and coffee that will affect you, as well as the differing caffeine concentrations. Theobromine and Theophylline are two chemicals of the many that are found in differing concentrations between these two drnks, and these may affect you in different ways. But before comparing the caffeine in Tea and Coffee, first check the concentrations of caffeine in these drinks- although the tea leaf has more caffeine in it, not all of this is released, and as such coffee is typically much stronger in terms of caffeine than tea, and so will affect you more.

Why does coffee make you hungry?

Coffee contains a drug called caffeine, which is a stimulant. Caffeine tends to make the body and the digestive system more active. Depends on what you are eating instead of drinking the coffee. And it depends on what type of coffee you are having. If you really want to eat less try drinking more water, water will fill you up with no calories at all, as opposed to coffee with has the calories you put in it, (sugar milk chocolate, or w/e). I think it would be better to have a piece of fruit instead of coffee. Maybe some nuts, or yogurt. Something small without any drugs.

Does coffee cause headaches?

In some people, coffee can trigger anything from a tension headache to a migraine. In other people, coffee can relieve them. Some people are addicted to caffeine and going without their morning coffee will cause caffeine withdrawal, one of the symptoms of which can be a severe headache. Unfortunately, the only way to stop those withdrawal headaches, also known as rebound headaches, is by getting all the way through withdrawal so that your body becomes accustomed to living without caffeine again.

Does drinking coffee slow the absorption of alcohol into the bloodstream?

The reason why intoxicated people drink coffee is not to slow the absorption of alcohol into the body, but to use caffeine as a stimulant, to counteract the depressant effect of alcohol. One drug fights against the other. But no, coffee does not slow the rate of alcohol absorption into the bloodstream.

How does caffeine give energy?

Well the short answer is caffeine is a plants natural insecticide so by drinking caffeine you body reacts to it by sending out adrenaline, hence giving you energy.

How does coffee raise the body's temperature?

When you drink an excessive amount of coffee the caffeine can raise the body\'s temperature as a side effect.

What should you do after drinking too much caffeine?

Drink lots of water to flush it out of your body.

What are negative side effects of caffeine?

Caffeine is harm full in one way but also not in another. This is because caffeine can provide energy throughout the day, coffee is one of the main drinks that have caffeine in them. coke also provides caffeine in the body and that is why people get hyperactive when drinking them. If you abuse on caffeine such as coffee and cokepeople can become to energetic causing the body to become energetic and that is not good for the body because we humans don't need so much energy we need the right amount. Think about it as an overload of too much energy just like a computer when too much information is stored in one folder there's too much of it so it needs to get rid of some stuff.Mainly when the body has too much caffeine it will stay awake all day and night depending on how much is in your body, that is why some people say to never drink coffee or coke before going to bed!For healthy adults at low dosages, no. Those who have heart problems, are pregnant, etc. should not take caffeine.

Does caffeine in tea affect the body differently than the caffeine in coffee?

For me, I would say yes! After I changed my beverage from coffee to tea, I don't get migraines any more and tea doesn't make me feel so dehydrated. From what I've gathered, it is said that tea leaves in their dry form has more caffeine than coffee beans, but after brewing the tea the caffeine would be lower than the brewed coffee.