Coffee is a brewed drink prepared from roasted coffee beans, the seeds of berries from certain Coffea species. The coffee berries are picked, processed, dried, and the beans are roasted. Roasted beans are ground and brewed with hot water to produce coffee. Coffee contains caffeine, which is a bitter substance that occurs naturally in over 60 plants and is added to foods and drinks. Caffeine is addictive as it affects the brain and produces feelings of alertness, and over-consumption can lead to signs of dependence like headaches without it. While caffeine provides benefits like improved mood and concentration, too much has disadvantages like increased stress, cardiovascular problems, and insomnia.

2. What Is Coffee
Coffee is a brewed drink prepared from roasted
coffee beans, the seeds of berries from certain
Coffea species. 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 then
brewed with near-boiling water to produce the
beverage known as coffee.
Coffee is darkly colored, bitter, slightly acidic and
has a stimulating effect in humans, primarily due
to its caffeine content.

3. What Is Caffeine
Caffeine is bitter substance
which occurs naturally in
over 60 plants, including:
coffee beans , tea leaves,
kola nuts , also in dark
chocolate , chocolate bars ,
milk chocolate , energy
drinks and etc.
Caffeine is added to other
foods, drinks and medicines

4. How Caffeine Affects the Brain
Caffeine is addictive because of
the way that the drug affects the
human brain and produces the
alert feeling that people crave.
Soon after caffeine is consumed,
it’s absorbed through the small
intestine and dissolved into the
bloodstream. Because the
chemical is both water and fat-
soluble, it’s able to penetrate the
blood-brain barrier and enter the

5. Signs of a Caffeine Addiction
• You get a headache if you miss a
cup.
• You're super grumpy before
• You can't concentrate without
caffeine.
• You need more and more coffee
for the same effect.
• You feel nervous or anxious.
• You can't bear the thought of
giving up coffee.

6. Benefits of Caffeine
• Mood
At 250 mg., some people report an improved sense of
well-being, happiness, energy, alertness and
sociability.
• Concentration
Studies suggest that caffeine can help you perform a
variety of cognitive tasks, such as recognizing visual
patterns, more quickly.
• Performance
Some sources note that caffeine allows athletes to
exercise for longer durations without hitting exhaustion.
Although the mechanism is not yet known, caffeine
affects the utilization of glycogen during workouts (the
main fuel for muscles).
• Reduced Muscle Pain
• Faster Effects of Medication
• Diabetes Prevention

7. Disadvantages Of Caffeine
• Cardiovascular Problems
Approximately 4 cups of coffee or a beverage with equivalent
amounts of caffeine can raise blood pressure for many hours. The
measured blood pressure levels are associated with increased risk
of cardiovascular disease.
• Stress
Caffeine consumption in the early morning affects the body until
bedtime, amplifying stress levels throughout the day. Caffeine
increases stress hormones.
• Emotional Disturbances
When more than 2g. of caffeine enters the body, the heart becomes
stimulated and blood vessels dilate. Shortly after, blood pressure
increases, causing bronchial relaxation in the lungs and increased
breathing.
• Aging
Caffeine tolerance may decrease with age.
• Nervousness
• Restlessness
• Insomnia

8. How to Cut Back Coffee
• Count your caffeine
• Cut back slowly
• Change up "the usual" and
choose a different coffee
drink
• Drink water
• Drink black tea
• Drink green tea
• Exercise

9. THANKS FOR ATTENTION