Here are the benefits and the side effects of living in a fasted state. Not only can it leave you too sluggish to really push the pedal to the medal, but if your. Avoiding coffee is the only solution. Caffeine's Decaf had a weaker effect, while no protection was found with tea. Join AARP Today — Receive access to exclusive information, benefits and discounts; More health information you can use. Learn more about potential benefits and risks here. and hailed for its health benefits for centuries globally, but has only recently . There are little to no known side effects or contraindications to drinking green tea for adults.
Benefits Effects No Health Side Just
Recent research has shown that coffee, in particular, may help prevent diseases like stroke and certain cancers, lower our risk of Parkinson's and dementia , and 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 disease , for example.
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 pressure , diabetes 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 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.
So before you turn on that coffeemaker or grab a grande cup from your favorite cafe, here are some things to keep in mind. 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. The amount of caffeine in a particular coffee drink depends on the brew and beverage size: 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. 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.
Caffeine aside, coffee can be considered a healthy drink, judging by the preponderance of research suggesting it may protect against a variety of diseases and help us live longer. Keep in mind that these studies found an association between better health and coffee drinking, but researchers haven't yet found exactly what causes these benefits. It could be, for example, that coffee drinkers are more active and social.
Or it could be that one of the more than 1, compounds that coffee naturally contains boosts our health. It's all about you. People have different reactions to caffeine. Some can drink six cups of coffee a day and feel fine, others need to switch to decaf or herbal tea by noon or they'll be up all night. If you need to cut back on your caffeine consumption, do it slowly over several weeks, gradually adding more decaf to your regular brew.
That big cup of soda and your favorite chocolate bar also contain caffeine. Save on eye exams, prescription drugs, hearing aids and more. This tool helps you identify your pills by color, shape and markings. Members can take a free confidential hearing test by phone. You are leaving AARP. Please return to AARP. Manage your email preferences and tell us which topics interest you so that we can prioritize the information you receive.
In the next 24 hours, you will receive an email to confirm your subscription to receive emails related to AARP volunteering. Once you confirm that subscription, you will regularly receive communications related to AARP volunteering.
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. 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 potentially leads to some spinal bone loss in postmenopausal women if they typically drink more than three cups, or 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.
Art of Healthy Eating Artificial sweeteners and other sugar substitutes Autism spectrum disorder and digestive symptoms Bad food habits at work? Get back on track in 5 easy steps Dietary guidelines Boost your calcium levels without dairy? Tips for moms Butter vs.
How much is too much? Calorie calculator The role of diet and exercise in preventing Alzheimer's disease Can whole-grain foods lower blood pressure?
Carbohydrates Chart of high-fiber foods Cholesterol: Top foods to improve your numbers Video: Coconut oil — perfect, poison or somewhere in between?
Healthy drink or marketing scam? Diet and overactive bladder Diet soda: Dietary fats Dietary fiber Do you drink enough water? Prickly pear cactus Does soy affect breast cancer risk?
Don't get tricked by these 3 heart-health myths Don't go cuckoo for coconut water Make healthy snack choices Eat more of these key nutrients! Energy drinks Fat grams For a healthy gut, feed the good bugs Fiber: Figuring out fermented foods Fish and polychlorinated biphenyls PCBs Fit more fiber into your diet Flaxseed for breakfast?
Flaxseed — tiny seed, nutritional powerhouse Foods for healthy skin Grape juice health benefits Video: Health benefits of coffee Health-boosting nutrients Is chocolate healthy? What are legumes, anyway? Healthy heart for life: How to maintain, not gain Video: How much water should you drink?
How to eat healthy while on the run Takeout containers Is sea salt healthier than table salt? Is there more to hydration than water? Is your refrigerator-freezer healthy? Juicing Depression and diet Video: Take 3 steps Diet and non-Hodgkin's lymphoma recovery Nutrition Facts label Nutrition rules that will fuel your workout Nuts and your heart: Eating nuts for heart health Olive oil Omega-6 fatty acids Video: Peeling into the health benefits of bananas Phenylalanine Play it safe when taking food to a loved one in the hospital Protein: Heart-healthy sources Healthy eating plans Video: Researching the trillions of bugs in your body Reduce sugar in your diet Health foods Portion control High-fiber diet Planning healthy meals Social eating can be healthy and enjoyable Sodium Sodium: Look beyond the saltshaker Stevia Video: Take the sugar challenge Tap water or bottled water: Taurine in energy drinks Video: The artificial sweeteners debate Video: The cautions and benefits of honey Video: The importance of dietary fiber Video: The truth about gluten Time to cut back on caffeine?
Timing snacks to avoid heartburn Trans fat: A double whammy Trans fat Trans fat substitutes: Not always better Underweight: Add pounds healthfully Want a healthier dinnertime? Science says change your eating space Daily water requirement Functional foods What are the leanest cuts of beef? What are ultraprocessed foods Video: What are your kids drinking? What is a good ileostomy diet? What is clean eating? What's considered moderate alcohol use?
What to eat for brain health What to know before you juice Video: What you need to know about cholesterol What's the difference between added sugars and total sugars? What's the difference between juicing and blending? Why carrots should be in your crisper Why does diet matter after bariatric surgery? Why nutrient-dense foods are good for you Video: Why whole grains are the healthier choice Video: Why your body's not geared for late-night snacks Video:
Caffeine for Your Health — Too Good to Be True?
Coffee has many clear health benefits, but also side effects Not only can coffee help you work out better, it also takes care of you afterward. Recent studies have generally found no connection between coffee and an Although coffee may have fewer risks compared with benefits, keep in mind that. Additional benefits include improved dental health and enhanced . Also, the safety of the long-term use of green tea extracts is not clearly . But when one uses the two together, the risk of caffeine side effects just multiplies.