![]() ![]() ![]() You may be more sensitive to its effects. If you already have high blood pressure or heart problems, though, have a discussion with your doctor about your caffeine intake. But several large studies do not link caffeine to higher cholesterol, irregular heartbeats, or an increased risk of cardiovascular disease. A slight, temporary rise in heart rate and blood pressure is common in those who are sensitive to caffeine. ![]() If you're an older woman, discuss with your health care provider whether you should limit your daily caffeine intake to 300 milligrams or less. Older adults may be more sensitive to the effects of caffeine on calcium metabolism. However, research does show links between caffeine and hip fracture risk in older adults. You can offset the calcium lost from drinking one cup of coffee by adding just two tablespoons of milk. But recent studies suggest it does not increase your risk for bone loss, especially if you get enough calcium. At high levels (more than 744 milligrams/day), caffeine may increase calcium and magnesium loss in urine. That includes such people as those who have high blood pressure or are older. Some people are more vulnerable to its effects, however. Moderate amounts of daily caffeine - about 300 milligrams, or three cups of coffee - apparently cause no harm in most healthy adults. 3: Caffeine Increases the Risk of Osteoporosis, Heart Disease, and Cancer People who are more sensitive may not only experience insomnia but also have caffeine side effects of nervousness and gastrointestinal upset. Your sensitivity may vary, though, depending on your metabolism and the amount of caffeine you regularly get. If you're like most people, your sleep won't be affected if you don't consume caffeine at least six hours before going to bed. Processed mainly through the liver, some caffeine does stick around in the body for several hours. But for most people, a cup of coffee or two in the morning won't interfere with sleep at night.Ĭonsuming caffeine later in the day, however, can interfere with sleep. For this reason, experts do not consider caffeine dependence an addiction.Ĭaffeine Myth No. However, caffeine does not cause the severity of withdrawal or harmful drug-seeking behaviors as street drugs or alcohol. No doubt, caffeine withdrawal can make for a few bad days. Symptoms of withdrawal from caffeine include: If you stop taking caffeine abruptly, you may have symptoms for a day or more, especially if you consume two or more cups of coffee a day. (Although after seeing your monthly spending at the coffee shop, you might disagree!) But caffeine doesn't threaten your physical, social, or economic health the way addictive drugs do. This one has some truth to it, depending on what you mean by "addictive." Caffeine is a stimulant to the central nervous system, and regular use of caffeine does cause mild physical dependence. WebMD has examined some of the most common myths about caffeine and gathered the facts to shed some light on those myths. In fact, caffeine itself is a mild painkiller and increases the effectiveness of other pain relievers. These products can contain as little as 16 milligrams or as much as 200 milligrams of caffeine. Caffeine is also present in some over-the-counter pain relievers, cold medications, and diet pills. Even decaffeinated coffee isn't completely free of caffeine. ![]() Caffeine content can range from as much as 160 milligrams in some energy drinks to as little as 4 milligrams in a 1-ounce serving of chocolate-flavored syrup. ![]()
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