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Post by Sigma on Dec 26, 2018 9:39:33 GMT
Caffeine is a bitter chemical that is found in a wide variety of beverages, including coffee, soda, tea and energy drinks. It’s a stimulant, meaning it reduces fatigue and increases alertness when consumed. It does so by blocking receptors for adenosine, a neurotransmitter that regulates the sleep-wake cycle and causes drowsiness. Most adults can safely consume up to 400 mg of caffeine a day without any side effects. This is the amount of caffeine in about four cups of coffee. However, some people are more sensitive to caffeine and experience reactions even after consuming a small amount. This hypersensitivity to caffeine has been linked to genetics, as well as a decreased ability to metabolize and excrete caffeine. A caffeine sensitivity is different than a caffeine allergy, which involves the immune system. People with a hypersensitivity to caffeine may experience the following symptoms after consuming even a small amount of caffeine: Rapid heartbeat Anxiety Jitters Insomnia Nervousness Restlessness People with a sensitivity to caffeine should minimize their intake by avoiding foods and beverages that contain caffeine, including coffee, soda, energy drinks, tea and chocolate. Source www.healthline.com/
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Post by kaimas on Jan 20, 2019 21:29:48 GMT
by Dr. Will Cole
Reactions to coffee seem strangely individual. Some people can drink it after dinner and go straight to sleep, while others have one cup in the morning and feel jittery, sweaty or get heart palpitations. What gives? Meet your caffeine gene. It’s called CYP1A2, because it controls the enzyme CYP1A2 and its this enzyme that determines how you metabolize caffeine: Fast, meaning you tolerate it well and it leaves your system quickly or slow, meaning your body doesn’t get rid of it efficiently, so you feel its effects harder and longer.
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Post by Sigma on Jan 10, 2020 0:35:40 GMT
If a person experiences an allergic reaction after consuming caffeine, then over-the-counter antihistamines may help reduce any itching, swelling, or hives. In very rare cases, a caffeine allergy may cause anaphylactic shock. This can be treated with an injection of epinephrine. People with severe allergies often carry a special pen to administer this. If a person is showing signs of an anaphylactic shock, contact emergency services immediately. Cutting out chocolate and coffee will help to prevent the symptoms of a caffeine allergy. When a person has a caffeine allergy or intolerance, the best way to prevent it is for them to avoid consuming anything containing caffeine. This may involve cutting out: coffee tea chocolate energy drinks If a person is unsure whether something contains caffeine, it is a good idea for them to read the label. Many people rely on caffeine to stay focused and alert during their working day. Caffeine is a drug, so cutting it out may cause withdrawal symptoms. These may include: shakiness headaches irritability tiredness After a week of being free from caffeine, withdrawal symptoms normally pass. If a person is trying to cut out caffeine, they may need to find other ways to stay alert. The following may help: taking regular screen breaks getting out for a walk at lunchtime drinking plenty of water getting enough sleep eating healthful food Outlook The outlook for caffeine intolerance and caffeine allergy is positive. So long as a person who is allergic or intolerant to caffeine avoids consuming it, they should not experience any further symptoms. www.medicalnewstoday.com/articles/320267.php#treatments-for-caffeine-allergy
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Post by kaimas on Apr 7, 2020 0:02:15 GMT
Testimonials from caffeine-intolerant people that have stopped drinking coffee:
“I feel like I’m in a new body! I’m so much healthier. I can’t tell you how amazingly different I have felt since!” - Emily Catterall, 24
“I’m not waking up as much during the night, not as bunged up in my nose and I’ve got so much more energy!” - Sally Gunnell, 52
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