Caffeine In The Human Body

This article discusses the affects caffeine has on several aspects of human health. These included toxicity, cardiovascular effects (arrhythmia, heart rate, cholesterol and BP), bone/calcium balance, behavior, and reproductive and developmental effects. It also discussing the affect caffeine intake has on children and reproductive-aged women.

Caffeine is a wildly use drug in today’s society. Caffeine is a methylated xanthine which acts as a mild central nervous system stimulant (MS & RL, 2001). It is a stimulant which acts upon the central nervous system and increases alertness, wakefulness and restlessness and it increases the release of catecholamine from renal medullar (Fernandez, 2016; Collines, 2007). It is present in many beverages. Caffeine is found in coffee, tea, soft drinks, products containing chocolate (cocoa) and some medication (Collines, 2007). It is used as a cardiac and respiratory stimulant (Collines, 2007).Caffeine is the most frequently ingested pharmacologically active substance in the world (Collines, 2007).

Caffeine is found in many plant species, where it acts as a natural pesticide. It is found most commonly in cocoa, tea and coffee, but is also artificially added to some soft drinks such as cola to act as a flavour enhancer. When consumed by humans, caffeine works as a stimulant causing amounts of released neurotransmitters to be increased. High use of caffeine has been related with raised blood pressure, restlessness, insomnia and anxiety which, in the long term, can lead to heart and circulation problems.

Caffeine is one of the most consumed psychoactive substances around the world. Caffeine is not bad for health, some researchers even show positive effects. Caffeine appears to reduce fatigue. And in this way also has an indirect effect on decision. Regarding cognitive function, caffeine has an effect on reaction time. Some studies also show a positive effect on long-term memory.

Caffeine is a natural product that is extracted from the raw fruit of coffee plants over sixty creased alertness. Caffeine gives most people a temporary energy boost and elevates mood..species to be exact. kola nuts, cocoa, yerba maté, guarana berries, coffee beans and teas contain this. Caffeine is rapidly absorbed in about 30 to 60 minutes in our bodies after ingestion. Caffeine is defined as a drug because it stimulates the central nervous system, causing increased alertness. Caffeine gives most people a temporary energy boost and elevates mood.caffeine can also be in things like over the counter medications, and pain relievers.

Caffeine is in tea, coffee, chocolate, many soft drinks,and pain relievers and other over-the-counter medications. In its natural form, caffeine tastes very bitter. But most caffeinated drinks have gone through enough processing to camouflage the bitter taste. Many people feel that caffeine increases their mental alertness. Higher doses of caffeine can cause anxiety, dizziness, headaches, and the jitters. Caffeine can also interfere with normal sleep. Caffeine in extreme cases could cause stroke, liver failure, and even

According to the American Academy of Pediatrics, adolescents should not consume more than one hundred milligrams a day, and even less so for younger children. Typically, an eight ounce (237 milliliters) drink of brewed caffeinated coffee contains a range of ninety-five to two hundred milligrams of coffee, whereas the same sized drink of decaffeinated coffee will generally have two to twelve milligrams (Nutrition). So, decaffeinated coffee only contains, generally, 0.04% of the caffeine that untreated coffee grounds have. In testing both caffeinated and decaffeinated coffee, it might be possible to see if the caffeine in the coffee will have a distinct effect

Ann Pietrangelo of Healthline.com lists these organs as the digestive and excretory system, circulatory and respiratory systems, skeletal and muscular systems, and the reproductive system. In the digestive and excretory systems, caffeine increases the acid in your stomach causing heartburn or upset stomach. Since it’s a diuretic, it tells your body to get rid of water. Nausea and vomiting can be triggered from caffeine withdraw. Caffeine overdose can cause excessive thirst, diarrhea, and increased urination. The circulatory and respiratory system can make your blood pressure go up. People with irregular heart rhythms, the caffeine can make the heart work harder than normal. Large amounts of caffeine consumption can interfere with absorption and metabolism of calcium. This can lead to osteoporosis. With the reproductive system, Pietrangelo points out that caffeine travels within the bloodstream and will cross into the placenta. This can cause a baby’s heart rate and metabolism to increase. Caffeine in large amounts can slow fetal growth and increase the risk of miscarriages. Painful lumps in the breast (fibrocystic disease) can also be a symptom of caffeine. Along with all the adverse side effects of caffeine, there are some health benefits when it’s taken in

3. Fertility studies have shown that women who drink one to one and a half cups of coffee each day had up to a 50% reduction in fertility.

Drinking caffeine can cause you to “temporarily enjoy sharper vision” due to the adrenaline rush and “stimulates the release of dopamine” (Stoddard). Dopamine, a neurotransmitter and is responsible for “learning about rewards” (Newton). It is also commonly known as the “feel-good” hormone. The substance is being studied for “potential benefits in battling Parkinson's disease” (Brian). Parkinson’s disease is a “neurodegenerative brain disorder” that causes the dopamine in the brain to “break down” (WebMD). Studies have shown that “caffeine seems to block a malfunctioning brain signal in Parkinson’s disease”, lessening the severity of the disease (Tessman). These studies have also shown that “people who use caffeine are less likely to develop Parkinson’s disease” (Tessman). Nothing is 100 percent proven as different people have different reactions, but the future of caffeine and medicine is looking bright. Since the drug is so inexpensive and easy to access, it could help many people who could normally not afford the expensive medications that could have the same result. Caffeine can also aid in concentration, making it beneficial to drink while studying for students. It also “opens blood vessels to allow for greater blood flow” supplying the brain and heart with even more oxygen (Ted). With this extra oxygen from the increased blood flow, the brain and heart can work more

Firstly, when drinking caffeinated drinks or anything that contains it the caffeine goes through the blood stream and directly to the brain. When we drink coffee, caffeine binds to our brain's adenosine receptors, stopping the chemical from binding with the receptors and making us tired. For the ones who regularly drink coffee in plentiful amounts, their brains develop more adenosine receptors, so it takes more coffee to keep us awake. That explains also why when we try to lay off the coffee a tad its very tiring to us because, were so use to that adenosine going to the brain. Whenever you’re awake, a chemical called adenosine slowly accumulates in your brain.

Align:start this is the most commonly used psychoactive drug in the world not the coffee that the caffeine in it there's a reason caffeine is so popular it has some great effects on the body first that pick-me-up feeling you get from it that's caffeine blocking adenosine in your brain which is the hormone that causes you to feel tired caffeine also tells your brain to release natural stimulants like glutamine and dopamine decel boost your mood and generate a sense of euphoria much like cocaine normally your body first burns its main source of fuel glycogen and then it burns fat the caffeine disrupts this process telling the body to burn fat earlier preserving your glycogen stores for later that's why your body can work harder without feeling

Attention Getter: 90% of people in the world consume at least one meal or beverage with caffeine in it daily. About 75% of those who regularly consume caffeine are addicted to it. (Whitemen, 2015).

Caffeine can increase mental alertness at work or while studying which can also enhance performance on certain mental tasks.

Caffeine has many negative effects on humans, such as increased heart rate (Lane, J.D., 2002), depression (Goldstein, 2008), and addiction to this “drug.” You may be asking yourself, “What is caffeine?” Well, caffeine is actually a stimulant (Barone, Roberts, 2008) that is found in beverages such as tea, coffee, and soft drinks. In fact, caffeine is the highest grossing and most used stimulant in the United States (Barone, Roberts, 2008). It is estimated that 85% of adults living in the United States consume caffeine on a daily basis (Barone, Roberts, 2008). That means for every 100 adults, 85 of them have had a drink that contained caffeine on any given day. One reason caffeine is so widely available compared to other stimulants is