Caffeine: About Overview, Side Effects, Addiction, and Withdrawal

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Caffeine: An Overview

Chemicals found in caffeine, tea, cola, guarana, companions, and other products.

Caffeine is commonly used to improve mental awareness, but it has many other uses. It is used orally or painfully (such as aspirin and acetaminophen) and a chemical called ergotamine for the treatment of migraine headaches. It is also used with painkillers to prevent and treat headaches after simple headaches and epidural anesthesia.

Some people use caffeine in their mouths for asthma, gall bladder disease, Attention Deficit Hyperactivity Disorder (ADHD), and other conditions, but there is no scientific evidence to support most of these uses.

Caffeine is one of the most commonly used stimulants among athletes. Its intake, within limits, is approved by the National Collegiate Athletic Association (NCA). Urine concentration of more than 15 mcg / mL is prohibited This urine provides most people about 8 cups of coffee 100 mg/cup to reach concentration.

Some caffeine products are sold in concentrated or pure form. These products are a health concern People can easily use these products in doses that are too much by mistake. It can cause death By 2018, the U.S. Food and Drug Administration (FDA) considers it illegal to sell these products in bulk to consumers.

This is used as an ingredient in food, soft drinks, energy drinks, and other beverages.

Voice disorder, singers, and other voice professionals are advised not to use caffeine. Of course, so far, the recommendation has been based solely on the hearing. Now development research suggests that caffeine can actually damage voice quality. But further studies are needed to confirm this initial finding.

How Does It work?

Once eaten, caffeine is quickly absorbed into the bloodstream from the gut.

From there, it travels to the liver and can be broken down into glands that affect the function of various organs.

That being said, the main effect of caffeine is on the brain.

It works by blocking the effects of adenosine, which is a neurotransmitter that relaxes the brain and makes you feel tired.

Generally, adenosine levels build up day by day, which makes you more tired and makes you want to sleep.

Caffeine helps keep you awake by connecting to the adenosine receptor in the brain without activating it. It blocks the effects of adenosine, which reduces fatigue.

It can also increase blood adrenaline levels and increase the brain activity of neurotransmitters dopamine and norepinephrine.

This mixture further stimulates the brain and stimulates the state of excitement, alertness, and meditation. Because it affects your brain, caffeine is often referred to as a psychoactive drug.

In addition, caffeine begins to apply its effects quickly

For example, the amount found in a cup of coffee can take up to 20 minutes to reach the bloodstream and about 1 hour to reach full effect.

In short

The main effect of caffeine on the brain It blocks the effects of the neurotransmitter adenosine and stimulates the brain.

Which Foods and Drinks Contain in Caffeine?

Caffeine is naturally found in the seeds, nuts, or leaves of some plants.

These natural resources are then harvested and processed for caffeinated food and beverage production.

Caffeine levels are expected to be 8-ounce (240-mL) per serving of some popular drinks.

  • Espresso: 240-720 mg
  • Coffee: 102–200 mg
  • Yerba Mate: 65-130 mg
  • Energy Drink: 50-160 mg
  • Brewed Tea: 40-120 mg
  • Soft Drink: 20-40 mg
  • Decaffeinated Coffee: 3–12 mg
  • Cocoa Beverage: 2-7 mg
  • Chocolate Milk: 2-7 mg

Some foods also contain caffeine For example, 1 ounce (28 grams) of milk chocolate contains 1–15 mg, while 1 ounce of dark chocolate contains 5–35 mg.

You can also get caffeine in over-the-counter drugs like some prescription or cold, allergies, and pain medications. It is also a common ingredient in weight loss supplements.

In short

Caffeine is usually found in coffee, tea, soft drinks, chocolate, and energy drinks.

Safety and Side Effects

The use of caffeine is generally considered safe and safe, although it is a habit.

Some of the side effects associated with overeating include anxiety, instability, tremors, irregular heartbeats, and sleep difficulties.

Excess caffeine can also cause headaches, migraines, and high blood pressure in some people.

In addition, caffeine can easily pass through the placenta, which can increase the risk of pregnancy or low birth weight. Pregnant women should limit their intake.

Caffeine can also interact with some medications.

People who take muscle relaxant Zanaflex or antidepressant Luvox should stay away from caffeine. Because these drugs can increase their effectiveness.

In Short

Caffeine can have a negative side effect among some people, including anxiety, restlessness, and sleep problems.

Caffeine: Special Precautions and Warnings


It is possibly safe for children to be given oral or intravenous (IV) before delivery before taking the advice and care of a health care professional. Caffeine is also safe if used in large quantities in food and used by children and adolescents.

Pregnancy and Breastfeeding:

Caffeine is possibly safe for pregnant or breast-feeding women when the daily amount is used less than 300 mg. It’s about 3 cups of coffee. Eating large amounts of food during pregnancy or breastfeeding is possibly unsafe. Eating too much during pregnancy can increase the chance of miscarriage and other problems.

In addition, caffeine can enter breastfeeding, so nursing mothers should keep a close eye on caffeine intake as it is on the lower side. Excessive caffeine intake by nursing mothers can lead to sleep disorders, annoyance, and an increase in intestinal infections in breastfeeding infants.

Also, Read – What is Depression? Symptoms, Causes, Treatment, and More

Anxiety Disorders:

Caffeine can make the condition worse. Use with care

Bipolar Disorder:

Excessive caffeine can worsen the condition In one case, a 36-year-old man with a controlled bipolar disorder was admitted to hospital with symptoms of mania after drinking several cans of a power drink containing caffeine, urine, inositol, and other ingredients (red bull energy drinks) within 4 years. If you have bipolar disorder during the day, use caffeine with care and in small amounts.

Bleeding Disorders:

There are concerns that caffeine may increase the risk of hemorrhage. If you have a bleeding disorder, use caffeine with caution.

Heart Condition:

Caffeine can cause irregular heartbeat in sensitive people. Use caffeine with caution


Some studies have shown that caffeine can affect the use of sugar in the body and make diabetes worse. However, the effects of caffeine drinks and supplements have not been studied If you have diabetes, use caffeine with caution.


Caffeine, especially when taken in large quantities, can make arrows worse.


People with epilepsy should avoid using too much caffeine. A small amount of caffeine should be used with caution.


Caffeine increases the pressure inside the eyes. The increase occurs within 30 minutes and lasts for at least 90 minutes after drinking caffeinated beverages.

High Blood Pressure:

Eating caffeine can increase blood pressure in people with high blood pressure. However, this effect may be less common among people who use caffeine regularly.

Loss of Bladder Control:

Caffeine can make bladder control worse by increasing the frequency of urination and the urge to urinate.

Irritable Bowel Syndrome (IBS):

Caffeine, especially when taken in large quantities, can make arrhythmias worse in IBS patients.

Weak Bones (Osteoporosis):

The amount of calcium excreted in caffeine can increase. If your osteoporosis or bone density is low, caffeine should be limited to less than 300 mg (about 2-3 cups of coffee) per day.

It is also a good idea to get extra calcium for the amount lost in the urine. If you are generally healthy and are getting enough calcium from your diet or supplement, taking 400 mg of caffeine (3-5 cups of coffee) per day is less likely to cause osteoporosis.

Older women are a hereditary disease that affects the use of vitamin D, caffeine should be used with caution. Vitamin D works with calcium to build bones.

Parkinson’s Disease:

Parkinson’s disease can quickly get worse by taking caffeine with creatine. If you have Parkinson’s disease and take creatine, use caffeine with caution.


Caffeine can worsen the symptoms of schizophrenia.

Caffeine: About An Overview, Side Effects, Addiction, and Withdrawal

Health Benefits of Coffee

Coffee consumption is linked to other health benefits:

  • Liver Protection:

Coffee can reduce the risk of liver damage (cirrhosis) by 84% It can slow down the progression of the disease, improve medical reactions, and reduce the risk of premature death.

  • Longevity:

Drinking coffee can reduce the risk of premature death by 30%, especially for women and women with diabetes.

  • Decreased cancer risk:

The risk of cancer can be reduced by drinking 2-4 cups of coffee per day up to 64% of the risk of liver cancer and up to 38% of the risk of colorectal cancer.

  • Skin protection:

Eating 4 or more cups of caffeine coffee per day can reduce the risk of skin cancer by 20%.

  • MS risk reduction:

Coffee drinkers may have a 30% lower risk of developing multiple sclerosis (MS). However, not all studies agree.

  • Gout prevention:

Regular consumption of 4 cups of coffee per day can reduce the risk of a 40% reduction in men and 57% in women.

  • Gut Health:

Drinking 3 cups of coffee a day for 3 weeks can increase the amount and activity of beneficial gut bacteria.

Remember that coffee also contains other ingredients that improve health Some of the benefits listed above can be made by substances other than caffeine.

In Short

Drinking coffee can promote a healthy liver, skin, and digestive system. It can also prolong life and help prevent many diseases.

Caffeine: The Bottom Line

  • Caffeine is not as unhealthy as it used to be.
  • In fact, the evidence suggests that it may just be the opposite.
  • Therefore, it is safe to consider your daily cup of coffee or tea as an enjoyable way to promote good health.

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