Caffeine is a substance that naturally exists in some plants but is also produced synthetically and added to certain foods and drinks, according to National Institutes of Health online medical encyclopedia Medline Plus. Some major sources of...
Caffeine is a known stimulant that is often consumed in coffee, certain teas and soda. Although consumption of caffeine is socially acceptable, it can sometimes cause side effects similar to certain anxiety disorders, particularly if the caffeine...
Caffeine is a central nervous stimulant that aids in helping you stay awake and alert. Caffeine is found in many everyday foods and drinks such as chocolate, coffee, tea and soda. Caffeine pills are another readily available source. Caffeine is...
Caffeine is a stimulant that naturally occurs in certain foods like tea, coffee and chocolate. It can also be added to foods and is sold as over-the-counter (OTC) stimulants. The Mayo Clinic says that moderate caffeine intake is okay, but heavy...
If you need an extra boost of energy so you can complete an assignment for school or a project for work, you may be tempted to take a caffeine pill. These over-the-counter stimulants contain the nervous system stimulant caffeine and can help keep...
Caffeine intoxication -- more commonly called a caffeine overdose -- may occur if you consume more than 500mg to 600mg caffeine daily. Though caffeine may help keep you awake and energized, too much of this stimulant may be bad for your health....
Whether you have to stay late at the office or pull an all-nighter for a project at school, drinks that contain caffeine may provide the energy boost you need to stay awake. Caffeine is a naturally occurring substance that works by stimulating...
Hallucinations that develop from consuming caffeine are a sign that you're experiencing a caffeine overdose. Hallucinations are defined by New York Times Health as seeing things that are not really present while you are awake and conscious. While...
Caffeine is a drug that occurs naturally in many plants and can also be produced synthetically. It is a stimulant that acts on your central nervous system, and is used to temporarily increase alertness. Many common beverages and medications...
Although occasional use of caffeine pills is considered safe, stomach aches are a sign of caffeine overdose, which will require emergency medical attention. According to Drugs.com caffeine pills can cause a wide range of common side effects, but...
The best-known effects of caffeine include tremors, nervousness and fast heartbeat. However, other symptoms, including nausea and vomiting, are also possible. The recommended amount of caffeine is no more than 300 milligrams per day, according to...
Certain side effects are expected when you ingest caffeine, such as jitters, excitability and sleeplessness. If you develop stomach pain and dizziness from caffeine consumption, call 911 immediately. Stomach palpitations refers to the feeling of...
Caffeine rarely affects the respiratory system. If you notice that you become short of breath, developing wheezing and coughing after you ingest caffeine, you need to talk with your doctor for an evaluation. Caffeine can have an effect on your...
Coffee is a popular drink that contains caffeine. Although coffee generally is safe, consumption of large amounts of coffee or other caffeine-containing substances can cause a caffeine overdose. Caffeine overdoses might be able to trigger seizures...
Excess coffee intake can lead to a variety of symptoms that mimic those of a heart attack. Nausea, vomiting, dizziness, sweating, shortness of breath and lightheadedness can all occur in individuals who consume more than the recommended daily...
Caffeine is a potent stimulant that might cause negative reactions in high doses. While most healthy adults can safely consume up to 300 mg of caffeine a day, caffeine sensitivities and allergies might cause you to experience more radical effects....
While many Americans are familiar with the pleasant mental buzz that sometimes accompanies a caffeinated beverage, drinking too much caffeine can wreck havoc on the digestive system. Even moderate doses of caffeine can cause an increase in the...
Caffeine is a nervous system stimulant and a diuretic that can cause atrial fibrillation and other problems when you consume excessive amounts. Caffeine overdose also may cause confusion, breathing problems and vomiting. Caffeine is found...
Caffeine is a potent stimulant of the central nervous system that is present in many different beverages. Caffeine is safe when consumed in moderation, but consuming caffeine in high levels or on a regular basis can lead to unpleasant side...
Ingesting too much caffeine may cause your breathing rate to increase, but it will not cause your throat to swell. Caffeine overdose can occur when you consume more caffeine than your body can handle, but it does not lead to your throat closing....
Not being able to breathe is frightening, making you feel like there's no way out. If you're currently taking water pills and ingesting caffeine, you need to talk with your doctor immediately. Water pills and caffeine are both diuretics that cause...
Pain under your ribs after consuming caffeine may be a sign of an allergic reaction or an overdose. Stop consuming caffeine and call your doctor. If the pain does not subside within a few hours, go to the emergency room. Describe how much caffeine...
At moderate levels, caffeine can boost your mood, increase your energy, stimulate your metabolism and even protect against some diseases. If you absorb too much caffeine, however, you can endanger or seriously harm your body. Remember that...
Many people drink caffeine every day without any adverse symptoms, such as stomach bloating. Bloating occurs when gas becomes trapped in your digestive system, placing pressure on your abdomen and causing your waistline to grow. Bloating is not a...
Excess caffeine does not cause skin rashes, but if you’re allergic to caffeine rashes may develop when you ingest a small amount of the substance. Drugs.com states that skin rashes are a severe side effect when using caffeine, one that needs...
If you have pressure in your chest after consuming caffeine, you should consult with your doctor and stop ingesting caffeine. Pressure in the chest is a concerning symptom that may be a sign of a more severe condition. Chest pain may be the result...
Bloating can be an annoying and troublesome symptom that can cause your waist to increase by a few inches. Bloating is not a common side effect of ingesting caffeine, unless you've overdosed on the substance, according to MedlinePlus. Caffeine is...
If you're currently taking caffeine pills and you develop diarrhea, stop taking the pills and call your doctor. Diarrhea is a symptom that needs further assessment because it is a common side effect of consuming caffeine and is a sign of a...
If you feel short of breath after consuming caffeine, you may have sensitivity to caffeine, you may have overdosed or you may have an allergy to the substance. Caffeine is commonly perceived as a safe substance because it's consumed daily by...