Name: unwanted effects learn to limit their caffeine


Name:Richmond YabehTitle:Caffeine as an energy booster Caffeine as an energy boosterRegularcoffee contains caffeine, a fat-soluble chemical that easily passes from yourbloodstream into your brain tissue. Your brain activity is controlled bychemicals called neurotransmitters, which either stimulate brain cells or quietthem.

Adenosine is a quieting neurotransmitter. Caffeine attaches to adenosinereceptors on your brain cells, blocking the quieting effect of thisneurotransmitter. The net effect of caffeine, therefore, is stimulation. Theincreased activity of your brain cells under the influence of caffeine leads toa secondary rise in the amount of epinephrine in your body. Epinephrine is the”fight or flight” hormone, which has stimulating effects on your brain andbody. The effects of caffeine vary from person to person.  Caffeine effects depend on many factors,including the frequency and amount of regular intake, body weight, and physicalcondition.  There are some individualswho can consume caffeinated products late in the evening without appreciableimpact on their ability to sleep.

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  Othersfind even a small amount of caffeine keeps them awake.  Individuals tend to find their own acceptablelevel of daily caffeine consumption. People who feel unwanted effects learn to limit their caffeineconsumption. Coffeeis a brewed drink prepared from roasted coffee beans, which are seeds ofberries from the Coffea plant. Coffeeis slightly acidic and can have a stimulating effect onhumans because of its caffeine content.

Once ripe, coffee berries are picked, processed, and dried. Driedcoffee seeds (referred to as beans) are roasted to varying degrees,depending on the desired flavor. Roasted beans are ground and brewed withnear boiling water to produce coffee as a beverage.However,Caffeine is a natural chemical found in tea leaves, coffee beans, cocoa beans,and kola nuts found in many commonfoods and drinks including; coffee, soft drinks, tea, chocolate, energy drinks,medicines.

 Caffeinecan be classified as a drug by stimulating the brain and central nervoussystem, helping you to stay alert and preventing the onset of tiredness. Caffeinehas been shown to have a positive effect on both physical and mentalperformance; Individuals who consume caffeine may experience increased memoryand improved reasoning abilities. Caffeine consumption can improve reactiontime and auditory and visual accuracy. It can be absorbed in the stomach andthe intestine, and Stimulates brain activity. Caffeine has couple ofpsychological effects by acting on the Central Nervous system to block thebrains neuroreceptors for adenosine.Caffeine can cause insomnia by inhibiting the activity of a neurotransmittercalled Adenosine.

It puts you to sleep when levels are high enough. Byinhibiting Adenosine activity, caffeine inhibits your ability to fall asleep. Caffeineacts as a stimulant on the central nervous system, increasing your heart rate. Caffeinecauses your adrenal glands to release more adrenaline, which causes your bloodpressure to increase.

The stimulant effects on the body from caffeine, such asincreased heart rate, increased adrenaline hormones, and heightened senses, cancombine to produce an overwhelming sensation in some people, making them feel anxious. Abrain chemical called Adenosine regulates drowsiness. When you are tired, Adenosines builds up inside the brain andattaches to the proteins on brain cells called adenosine receptors causingdrowsiness. Molecules of caffeinebind to these adenosine receptors in the brain as you drink coffee and excitebrain cells. Caffeine blocks enoughreceptors to make you stay awake for hours, after which caffeine molecules arebroken down and eliminated.

Caffeineis effective 15 minutes to 1 hour after intake. Morethan 800 chemicals have been identified in coffee beans; caffeine, sucrose,cellulose, proteins and acids such as citric acid found in acidic fruits. Chemicalreactions inside the beans destroy some molecules and create new ones whencoffee is roasted.

As coffee beans absorb heat, their color shifts from greento yellow to light brown to dark brown. As coffee beans roast, they pop due topressure inside, then swell and split.Achemical process called Maillard reaction combines heated sugar and amino acidsto form color and flavor. After 12 minutes, a second pop can be heard, and thebeans start oozing out oils. Afamily of chemicals present in coffee is called chlorogenic acids which make up6% and 12% of the chemicals present in coffee beans while caffeine is about 1%to 2%. Chlorogenic acids belongs to a group of chemicals known as antioxidants,which protect cells against damage from free radical molecules formed insidecells. Light-to medium-roast coffees contain the most of antioxidants.

Green coffee’santioxidant properties are mainly due to chlorogenic acids.Chlorogenicacids are absorbed by the stomach and intestines which slows the release ofglucose into the bloodstream after a meal, lowering blood sugar levels. Chlorogenicacids bind to proteins on the surface of brain cells that also bind to drugsthat reduce alcohol craving. This shows that consuming coffee may help peoplesuffering from alcoholism.

  (Is coffee good for you?)Thedrink of coffee will improve your mood and increase your mental alertness andreaction speed, even ability to do simple math problems. Caffeine is on theFood and Drugs Administration’s list of food additives that are recognized assafe. If coffee works for you, that’s great. But food experts suggest drinkingno m1ore than three cups of coffee per day. People who normally consumes morefound themselves restless and sleepless.

  

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