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Dr. Karl R.O.S. Johnson's Chronic Condition Natural Treatment Blog

Intentional musings of a unique Shelby Township Michigan Chiropractic Physician dedicated to helping people find solutions to improving their health by rooting out causes to chronic conditions such as fibromyalgia, stubborn thyroid disorder symptoms, balance disorders, chronic knee & shoulder pain, migraines, sciatica, ADD/ADHD/ASD, back pain, peripheral neuropathy, gluten sensitivity and autoimmune disorders so they can Reclaim Their Life!

From the Desk of Dr. Karl R.O.S. Johnson, DC.....

Does Coffee Slow The Brain?

Posted by Dr. Karl R.O.S. Johnson, DC on Fri, Aug 13, 2021

Beautiful young woman enjoying a fresh cup of coffee in a coffee shop

A Recent Coffee Study

For centuries, people have reached for a cup of coffee to help focus the mind, but according to a study published in 2021, a morning cup of java could have the opposite effect. [1]

Researchers recruited 32 habitual coffee drinkers and 24 non-coffee drinkers and asked them to complete questionnaires used to measure stress, anxiety, and depression. Each participant then underwent a resting-state functional MRI scan that measured connectivity in various parts of the brain.

The coffee drinker group exhibited decreased functional connectivity in two important networks: the somatosensory, which processes sensations like pressure, pain, or warmth; and the limbic, which is involved in emotional responses and memory formation, among other things.  The coffee drinkers also had decreased connectivity in the subcortical and posterior brain regions, which include motor and emotional processing as well as the visual network and the cerebellum.

Don't Drink Too Much Coffee

Among the coffee drinkers, the researchers identified a clear association between coffee consumption frequency and reduced connectivity— the more coffee one drank, the less connectivity they had in these areas of the brain. The coffee drinkers also had elevated stress and anxiety levels, which were even higher in the heaviest coffee drinkers.


In the second phase of the experiment, researchers asked the non-coffee drinkers to drink a cup of coffee and then imaged their brains for a second time. The post-coffee scan showed altered activity in the same areas of the brain, which suggests that coffee itself is more likely to be responsible for the reduced brain connectivity, rather than individuals with reduced connectivity being more likely to desire coffee.


So, is coffee bad for you? This is just one study, and the findings may not be reproducible in another group or the data could be interpreted in another manner. That’s why researchers do follow-up studies with larger groups and more variables. Over time, as research grows on a particular topic, more scientists will conduct meta-analyses to try and come to firmer conclusions that may make their way into lifestyle recommendations or treatment guidelines.

On the other hand, there is a lot of research that drinking up to 3.5 cups of coffee a day may be associated with reduced risk for cardiovascular disease, death from cardiovascular disease, early death, and a lower risk for some cancers and conditions that affect metabolic health and liver function.

Time will tell if coffee is more bad than good for you, but the present data suggests it’s most likely beneficial, and if you enjoy the beverage, do so in moderation. And if you have aches and pains that are interfering with your ability to get into the kitchen to make a cup or to walk to a nearby coffee shop, then make an appointment with Dr. Karl R.O.S. Johnson, DC to see if a short-term course of treatment might help resume your normal activities.

call for an appointment today. Call 586-731-8840.

For more details about the natural approach I take with my patients, take a look a the book I wrote entitled: Reclaim Your Life; Your Guide To Revealing Your Body's Life-Changing Secrets For Renewed Health. It is available in my office or at Amazon and many other book outlets.

If you found value in this article, please use the social sharing icons at the top of this post and please share with those you know who are still suffering with low thyroid symptoms or other chronic health challenges, despite receiving medical management. Help me reach more people so they may regain their zest for living! Thank you!



1. Habitual coffee drinkers display a distinct pattern of brain functional connectivity (https://www.nature.com/articles/s41380-021-01075-4)

Topics: Brain Health, Anxiety and Stress, coffee

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