Caffeine Effects: Withdrawal, Sleep & Health Impact

Caffeine impacts everything from sleep quality to concentration and heart rate. Learn how long withdrawal takes, the diuretic effects on the body, and the potential risks of taking caffeine tablets with medication or alcohol.

Fresh honey

Positive and Negative Effects of Honey on the Body

Honey is a sweetener bees produce from flower nectar. A beehive contains approximately 60,000 honey bees that collectively fly about 55,000 miles and gather nectar from two million flowers to produce 1 lb. of honey, according to the National Honey Board.

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Woman sitting on windows sill, drinking coffee, smiling

Caffeine & Brain Fog

Caffeine is naturally derived from over 60 varieties of plants. It can also be produced synthetically and added to foods or beverages. Caffeine is one of the most widely used legal stimulant drugs worldwide. With its stimulating benefits, however, come some negative effects when you consume too much.

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Why a Headache After a Day of Not Drinking Coffee?

Missing your morning coffee may not seem like a big deal until you develop a headache that feels like a beating drum in your temples. Even worse, your caffeine-withdrawal headache may be accompanied by other unpleasant symptoms like fatigue, difficulty concentrating, mood changes and feeling like you have the flu.

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Cup of coffee

Caffeine's Effect on Iron Absorption

Tea, coffee, cola and chocolate all contain caffeine, which acts as a stimulant and can interfere with the absorption of certain nutrients when you get large amounts in your diet. People with iron deficiencies are often advised to avoid caffeine due to its potential to reduce iron absorption.

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Caffeine Withdrawal and Depression

Caffeine withdrawal has been recognized as a medical diagnosis. The symptoms caused by caffeine withdrawal may be debilitating and cause clinical distress.

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Hot Latte

The Effects of Caffeine on Bowel Movements

If you aren't able to have a bowel movement at least three times a week, you meet the clinical definition of being constipated. The solution, however, might be sitting in your kitchen cupboard or at the nearest coffee shop.

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coffee

The Duration of Caffeine Withdrawal Symptoms

Caffeine is a naturally occurring psychoactive stimulant. In humans, caffeine stimulates the central nervous system and the body’s metabolism, and also has a mild diuretic effect. The U.S. Food and Drug Administration lists caffeine as both a drug and a food additive.

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Two Business Colleagues Sitting in a Canteen Having a Cup of Coffee

Does Caffeine Constrict Blood Vessels?

Caffeine can affect the body and brain in a number of ways. While it is most commonly used for alertness and mental focus, caffeine consumption does have other possible side effects that should not be overlooked. Blood vessel constriction, also known as vasoconstriction, is one of these potential side effects.

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Tea time

Caffeine Addiction and Tea

With the exception of water, more people in the world consume tea than any other beverage, according to the Tea Association of the U.S.A., Inc. While tea has a number of health benefits, it also contains a significant amount of caffeine.

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Hot Black coffee in a white cup on the table.

How Do Caffeine Tablets Affect Your Body?

Caffeine pills or tablets generally contain between 50 to 200 milligrams of caffeine per serving, according to the Center for Science in the Public Interest. This is approximately twice the amount of an average cup of coffee.

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The Effects of Taking Caffeine With Adderall

Adderall -- a brand of amphetamine salts -- is a central nervous stimulant, or CNS. It is used in the treatment of attention deficit hyperactivity disorder, also known as ADHD. Caffeine is a naturally occurring substance found in a variety of plants, such as coca pod, cola nut and guarana.

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Woman sitting in window with coffee cup

Caffeine Headache Symptoms

Caffeine is one of the most widely used mood altering drugs and is reportedly consumed regularly by 80 to 90 percent of North Americans, according to an article published in the September 2008 issue of the journal "Psychopharmacology."

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How Much Caffeine Is In Tim Hortons Coffee?

Caffeine is a mild stimulant that sparks the body's natural "fight or flight" response. Caffeine causes the adrenal gland to secrete fluid, which is why you feel a sudden rush after drinking a cup of coffee.

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Cup of cappuccino in the hand

Does Caffeine Agitate IBS?

Irritable bowel syndrome, or IBS, is an intestinal disorder characterized by abdominal pain, gas, bloating and altered bowel habits. People with IBS can have either constipation or diarrhea, and many individuals alternate between the two.

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view of a man sprinting on a pier

Negative Side Effects of Caffeine & Ephedrine

Caffeine and ephedrine are the primary ingredients in many popular diet and weight loss pills. Caffeine and ephedrine work individually and together to stimulate your central nervous system. The two ingredients can suppress your appetite, give you energy and increase thermogenesis which helps you burn fat.

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The Effects of Caffeine on Breathing

Caffeine stimulates the central nervous system and it is often consumed to feel more awake and alert. It can have several effects on the body, including altering the breath rate, which may be a concern especially for those with lung disorders.

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Coffee Cup, Still Life

How to Flush the Body of Caffeine

While some people enjoy the stimulation they get from drinking a cup of coffee, others may feel overly stimulated. If caffeine is more foe than friend, you may be looking for ways to flush it out of your system. Unfortunately, you can't flush caffeine out of your body.

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Woman drinking wine

What Happens When You Take Caffeine Pills & Alcohol?

The mixture of caffeine and alcohol can be toxic to your body. Caffeine appears to override the tiredness that occurs when you drink alcohol. It also delays your feeling of drunkenness. If you drink alcohol while taking caffeine pills, you are likely to keep drinking beyond your usual limits.

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Coffee with cinnamon roll

The Effects of Caffeine on Concentration

Caffeine is a mild stimulant found not only in coffee but in at least 63 plant species and in pain relievers, diuretics and prescription medications. Because, as the U.S.

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Organic Ginger Ale Soda

Diet Dew Facts

Soda is big business, especially when it comes to soda consumption by children and adolescents. Research from the UCLA Center for Health Policy Research in 2009 showed 41 percent of children and 62 percent of adolescents drink at least one soda every day.

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