Caffeine as an energy booster
Caffeine as an energy booster
coffee contains caffeine, a fat-soluble chemical that easily passes from your
bloodstream into your brain tissue. Your brain activity is controlled by
chemicals called neurotransmitters, which either stimulate brain cells or quiet
them. Adenosine is a quieting neurotransmitter. Caffeine attaches to adenosine
receptors on your brain cells, blocking the quieting effect of this
neurotransmitter. The net effect of caffeine, therefore, is stimulation. The
increased activity of your brain cells under the influence of caffeine leads to
a secondary rise in the amount of epinephrine in your body. Epinephrine is the
“fight or flight” hormone, which has stimulating effects on your brain and
body. 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 physical
condition. There are some individuals
who can consume caffeinated products late in the evening without appreciable
impact on their ability to sleep. Others
find even a small amount of caffeine keeps them awake. Individuals tend to find their own acceptable
level of daily caffeine consumption.
People who feel unwanted effects learn to limit their caffeine
is a brewed drink prepared from roasted coffee beans, which are seeds of
berries from the Coffea plant. Coffee
is slightly acidic and can have a stimulating effect on
humans because of its caffeine content. Once ripe, coffee berries are picked, processed, and dried. Dried
coffee seeds (referred to as beans) are roasted to varying degrees,
depending on the desired flavor. Roasted beans are ground and brewed with
near boiling water to produce coffee as a beverage.
Caffeine is a natural chemical found in tea leaves, coffee beans, cocoa beans,
and kola nuts found in many common
foods and drinks including; coffee, soft drinks, tea, chocolate, energy drinks,
can be classified as a drug by stimulating the brain and central nervous
system, helping you to stay alert and preventing the onset of tiredness. Caffeine
has been shown to have a positive effect on both physical and mental
performance; Individuals who consume caffeine may experience increased memory
and improved reasoning abilities. Caffeine consumption can improve reaction
time and auditory and visual accuracy. It can be absorbed in the stomach and
the intestine, and Stimulates brain activity. Caffeine has couple of
psychological effects by acting on the Central Nervous system to block the
brains neuroreceptors for adenosine.
Caffeine can cause insomnia by inhibiting the activity of a neurotransmitter
called Adenosine. It puts you to sleep when levels are high enough. By
inhibiting Adenosine activity, caffeine inhibits your ability to fall asleep. Caffeine
acts as a stimulant on the central nervous system, increasing your heart rate. Caffeine
causes your adrenal glands to release more adrenaline, which causes your blood
pressure to increase. The stimulant effects on the body from caffeine, such as
increased heart rate, increased adrenaline hormones, and heightened senses, can
combine to produce an overwhelming sensation in some people, making them feel anxious.
brain chemical called Adenosine regulates drowsiness. When you are tired, Adenosines builds up inside the brain and
attaches to the proteins on brain cells called adenosine receptors causing
drowsiness. Molecules of caffeine
bind to these adenosine receptors in the brain as you drink coffee and excite
brain cells. Caffeine blocks enough
receptors to make you stay awake for hours, after which caffeine molecules are
broken down and eliminated. Caffeine
is effective 15 minutes to 1 hour after intake.
than 800 chemicals have been identified in coffee beans; caffeine, sucrose,
cellulose, proteins and acids such as citric acid found in acidic fruits. Chemical
reactions inside the beans destroy some molecules and create new ones when
coffee is roasted. As coffee beans absorb heat, their color shifts from green
to yellow to light brown to dark brown. As coffee beans roast, they pop due to
pressure inside, then swell and split.
chemical process called Maillard reaction combines heated sugar and amino acids
to form color and flavor. After 12 minutes, a second pop can be heard, and the
beans start oozing out oils.
family of chemicals present in coffee is called chlorogenic acids which make up
6% 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 inside
cells. Light-to medium-roast coffees contain the most of antioxidants. Green coffee’s
antioxidant properties are mainly due to chlorogenic acids.
acids are absorbed by the stomach and intestines which slows the release of
glucose into the bloodstream after a meal, lowering blood sugar levels. Chlorogenic
acids bind to proteins on the surface of brain cells that also bind to drugs
that reduce alcohol craving. This shows that consuming coffee may help people
suffering from alcoholism.
(Is coffee good for you?)
drink of coffee will improve your mood and increase your mental alertness and
reaction speed, even ability to do simple math problems. Caffeine is on the
Food and Drugs Administration’s list of food additives that are recognized as
safe. If coffee works for you, that’s great. But food experts suggest drinking
no m1ore than three cups of coffee per day. People who normally consumes more
found themselves restless and sleepless.