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The negative long term effects of excessive coffee consumption

That's about three cups per coffee drinker in the United States, where 83 percent of adults can't imagine life without their favorite cup of java. Add to that tea, caffeinated soft drinks and those infamous energy drinksand you won't be surprised to read that 90 percent of us consume caffeine in some form or another each day.

  1. More moderate consumption showed 3 times the risk. It works by blocking the effects of adenosine, a brain chemical that makes you feel tired.
  2. On the other hand, this may affect your ability to sleep. Caffeine and Miscarriage Risk.
  3. Caffeine consumption can lead to increased anxiety, depression and the need for anxiety medication.
  4. However, caffeine itself also seems to stimulate bowel movements by increasing peristalsis, the contractions that move food through your digestive tract 21.

Is this a bad thing? Recent research has shown that coffee, in particular, may help prevent diseases like stroke and certain cancers, lower our risk of Parkinson's and dementiaand boost our concentration and memory. Partly that's because coffee beans are seeds, the National Institutes of Health NIH reminds us, and like all seeds, they're loaded with protective compounds.

Caffeine, a mild stimulant, also provides benefits: It's been linked to lower risks of Alzheimer's diseasefor example.

Caffeine for Your Health — Too Good to Be True?

But when it comes to caffeine, there really can be too much of a good thing. Those who study caffeine's lesser-known effects point to studies that indicate it can be worrisome for people with high blood pressurediabetes and osteoporosis. Plus, caffeine can interact poorly with some common medications, and it can worsen insomnia, anxiety and heartburn. It would make things easier if the caffeine content were listed on food labels so you would know if you've exceeded the 300 mg level that most health experts say is a safe, moderate amount for the day — about the amount in three 8-ounce cups of coffee, depending on how strong you brew it — but so far that's not happening.

  1. These headaches may be transient or they may be a long-term effect of caffeine. Long-term coffee drinkers have ongoing high levels of caffeine; they are often found wide awake in bed, unable to sleep.
  2. Caffeine withdrawal is difficult and unpleasant. It increases blood sugar levels, making it harder for those with type 2 diabetes to manage their insulin, according to a number of studies; it also can slightly raise blood pressure.
  3. People with hypertension were given 250 mg of caffeine about 2 coffees and the data revealed that their blood pressure was elevated for about 2-3 hours after the caffeine. One review of 41 studies found that although caffeinated energy drinks increased alertness and improved mood for several hours, participants were often more tired than usual the following day 42.
  4. However, at higher doses, these effects may become more pronounced, leading to anxiety and nervousness.
  5. Some of those negatives include.

So before you turn on that coffeemaker or grab a grande cup from your favorite cafe, here are some things to keep in mind. First, the bad news about caffeine and coffee Remember: Caffeine is a drug, says Steven Meredith, a researcher in behavioral pharmacology at the Johns Hopkins School of Medicine. While low to moderate doses are generally safe, caffeine is addictive and users can become dependent on it and find it difficult to quit or even cut back, he says.

Caffeine dependence was even named as a new mental disorder this year. Anyone who's ever quit cold turkey knows it can trigger pounding headaches, mental fuzziness and fatigue for a couple of days until the body adjusts.

Other effects of too much caffeine: It increases anxiety and disrupts sleep patterns, leading to a vicious cycle of restless sleep, relying on caffeine to help with daytime fatigue, followed by more insomnia. Caffeine interacts with some medicationsincluding thyroid medicationpsychiatric and depression drugs, the antibiotic Cipro and the heartburn drug Tagamet. It increases blood sugar levels, making it harder for those with type 2 diabetes to manage their insulin, according to a number of studies; it also can slightly raise blood pressure.

Caffeine Counts

If you have difficulty controlling either your blood pressure or diabetes, switching to decaf may help, says Rob van Dam with Harvard's School of Public Health.

Caffeine Counts The amount of caffeine in a particular coffee drink depends on the brew and beverage size: Restaurant espresso 1 oz.

Mayo Clinic Caffeine potentially leads to some spinal bone loss in postmenopausal women if they typically drink more than three cups, or 300 mg of caffeine, a day, but don't get enough calcium in their diet, says Linda Massey, emeritus professor of nutrition at Washington State University.

An older woman should make sure she gets at least 800 mg of calcium daily — through food or supplements — to offset caffeine's effect on calcium, adds Bess Dawson-Hughes, M. Coffee itself can also mess with your stomach. If you have problems with acid reflux or heartburn, then coffee and even tea might not be right for you. And if you have high cholesterol and you don't want your coffee adding to the problem, you need to use a paper filter to trap the cafestol, a compound in coffee that raises LDL cholesterol levels, says van Dam.

Here's what you need to know if you have a touchy tummy Coffee's not your friend if you're prone to heartburn.

20+ Harmful Effects of Caffeine

Coffee is highly acidic and is irritating to the gastrointestinal tract. Switching to decaf won't help: In fact some research has found that decaf increases stomach acid even more than caffeinated coffee. Neither will switching methods of brewing or roasting. Avoiding coffee is the only solution. Caffeine's not your friend if you have acid reflux. Caffeine seems to be the main culprit by relaxing the sphincter muscle that normally keeps stomach acid from bubbling up the esophagus.

  • Interestingly, stress levels were similar between regular and less frequent caffeine consumers, suggesting the compound may have the same effect on stress levels regardless of whether you drink it habitually 12;
  • Coffee itself can also mess with your stomach;
  • Breast Tissue Cysts In Women;
  • A recent study showed that immediately after energy drink consumption the heart produced more forceful contractions;
  • Some have a lower tolerance for caffeine than others.

Decaf coffee has significantly less of a reflux effect, studies have found. Now, the good news about caffeine and, of course, coffee Caffeine has been shown to protect against a host of problems. Some studies have found that those who drink lots of coffee but not decaf seem to be four to eight times less likely to develop Parkinson's disease, according to the NIH's National Institute of Neurological Disorders and Stroke, and "that is more likely to be due to caffeine" than to any nutrients in coffee, says van Dam.

Some other benefits of coffee: It may reduce the risk of Alzheimer's and dementia. A caffeine habit in your 40s and 50s — three to five cups daily of the high-octane stuff, not decaf — seems to reduce by up to 70 percent the risk of Alzheimer's and dementia in your 70s, a 2009 University of Florida study found.

That cup of joe may be good for many, but there are downsides as well

Other studies have found that regular caffeine consumption may help slow the rate of cognitive decline in older adults. Coffee cuts suicide risk. A 2013 study by Harvard's School of Public Health found that those who drank two to three cups of caffeinated coffee a day cut their suicide risk by 45 percent — possibly because caffeine's stimulant effect helps boost people's moods.