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2. How much caffeine is too much? - AOL

   www.aol.com/finance/much-caffeine-too-much...

   Although caffeine has its benefits, too much can be detrimental to your health. In fact, it can exacerbate existing conditions. ... Headaches. Dizziness. Fast heart rate. Anxiety.

3. How much caffeine is too much? - AOL

   www.aol.com/lifestyle/much-caffeine-too-much...

   headache. a feeling of unhappiness. How much caffeine is too much? In general, the FDA recommends that you have no more than 400 milligrams of caffeine a day, the equivalent of four or five cups ...

4. Caffeine - Wikipedia

   en.wikipedia.org/wiki/Caffeine

   Caffeine sometimes increases the effectiveness of some medications, such as those for headaches. [163] Caffeine was determined to increase the potency of some over-the-counter analgesic medications by 40%. [164] The pharmacological effects of adenosine may be blunted in individuals taking large quantities of methylxanthines like caffeine. [165]

5. Caffeine dependence - Wikipedia

   en.wikipedia.org/wiki/Caffeine_dependence

   Caffeine dependence can cause a host of physiological effects if caffeine consumption is not maintained. Commonly known caffeine withdrawal symptoms include headaches, fatigue, loss of focus, lack of motivation, mood swings, nausea, insomnia, dizziness, cardiac issues, hypertension, anxiety, and backache and joint pain; these can range in severity from mild to severe. [18]

6. How to get rid of a headache - AOL

   www.aol.com/lifestyle/rid-headache-140004060.html

   But taking too much caffeine can have the opposite effect and make you feel worse. If you feel a headache coming on, Mikhael recommends having a small cup of coffee and seeing where it gets you ...

7. Caffeinism - Wikipedia

   en.wikipedia.org/wiki/Caffeinism

   These symptoms including nervousness, irritability, restlessness, insomnia, headaches, and palpitations after caffeine use. [4] Caffeinism usually occurs when consumption of caffeine reaches 1–1.5 grams (0.035–0.053 oz) per day. [5] For reference, a brewed 8oz (227ml) cup of coffee contains ~95 mg of caffeine (per USDA). [6]

8. What parents should know about kids and caffeine amid ... - AOL

   www.aol.com/news/parents-know-kids-caffeine-amid...

   In severe cases, too much caffeine can lead to seizures or cardiac arrest. In milder cases, too much caffeine can cause dehydration, upset stomach, sleep changes, headaches and jumpiness.

9. How Much Caffeine Is Too Much? - AOL

   www.aol.com/drinking-too-much-caffeine-204000420...

   Caffeine does not give you energy, just delays fatigue for a little while longer.” In other words, that 2 p.m. cup of coffee is just delaying the inevitable. At first, caffeine might appear to ...