Recent Blog Articles
Taking up adaptive sports
Cutting and self-harm: Why it happens and what to do
Discrimination at work is linked to high blood pressure
Pouring from an empty cup? Three ways to refill emotionally
Give praise to the elbow: A bending, twisting marvel
Sneezy and dopey? Seasonal allergies and your brain
The FDA relaxes restrictions on blood donation
Apps to accelerometers: Can technology improve mental health in older adults?
Swimming and skin: What to know if a child has eczema
A muscle-building obsession in boys: What to know and do
Mind & Mood
Is an underlying condition causing your fuzzy thinking?
The top five causes you may be overlooking.
You know the feeling: you can't find a particular word, remember someone's name, or concentrate the way you once did. Is it just aging, or is something else to blame? "It's easy to underestimate how underlying conditions affect memory and thinking, and they are often overlooked," says Dr. Shreya Raj, a neuropsychiatrist with the Center for Brain/Mind Medicine at Harvard-affiliated Brigham and Women's Hospital.
What you should do
When trouble with concentration or memory interferes with your day, it's probably time to talk to your primary care doctor. Report any additional symptoms you may be having, such as fatigue, muscle weakness, sadness, daytime sleepiness, or anxiety. You might need some blood tests to check your thyroid hormones or B12 levels (neither test is ordered routinely), or a sleep test if you have sleep apnea symptoms.
Often, treating an underlying condition can restore your clarity of thinking. "When we treat depression or sleep apnea, for example, we see a sudden improvement in memory and focus," says Dr. Raj. "And if a medication side effect is the problem, changing the dose or type of drug may resolve the problem."
If treating an underlying condition doesn't sharpen thinking skills, your doctor may refer you to a neuropsychologist for formal tests of your thinking ability, particularly signs of dementia. Most of the time, however, people with fuzzy thinking do not have dementia.
When you're struggling with fuzzy thinking, lifestyle changes like these can bring more clarity.
Get more sleep. Aim for seven to eight hours of sleep per night. "Older adults to tend to sleep less, but if you're getting too little sleep, you won't think as sharply as you could," says Dr. Shreya Raj. Boost your Z's by going to sleep and waking at the same time each day, and avoiding caffeine, particularly after noon.
Exercise more. Try to get 150 minutes of moderate-intensity activity per week, such as brisk walking. You'll get more sleep and boost blood flow to the brain. Many studies have shown that aerobic exercise in particular improves thinking skills.
Change your diet. "Not eating healthfully makes you more sluggish, even in thinking. Studies have shown the Mediterranean diet may improve cognitive function," says Dr. Raj. The diet includes fresh vegetables and fruits; whole grains; olive oil; nuts; legumes; fish; moderate amounts of poultry, eggs, and dairy; moderate amounts of red wine; and red meat only sparingly.
To continue reading this article, you must log in.
Subscribe to Harvard Health Online for immediate access to health news and information from Harvard Medical School.
- Research health conditions
- Check your symptoms
- Prepare for a doctor's visit or test
- Find the best treatments and procedures for you
- Explore options for better nutrition and exercise
I'd like to receive access to Harvard Health Online for only $4.99 a month.Sign Me Up
Already a member? Login ».
As a service to our readers, Harvard Health Publishing provides access to our library of archived content. Please note the date of last review or update on all articles.
No content on this site, regardless of date, should ever be used as a substitute for direct medical advice from your doctor or other qualified clinician.
Free Healthbeat Signup
Get the latest in health news delivered to your inbox!