Natural Health Advisory

Is your brain fried at the end of a long day at work? Does your mind get such a big workout juggling tasks, brainstorming ideas, and problem solving that you can hardly think straight when you get home? Although you might be tempted to resent your career for tiring out your brain, this might actually be a good thing; mental demands at work may be what helps with memory loss prevention.

Mentally demanding work can help lower the rate of cognitive decline

A study published this year in the journal Neurology looked at data from over 1,000 people 75 years of age and older. They measured cognitive functioning at the beginning of the study and then followed up eight years later. The researchers found that people who had previously had a high level of mentally demanding tasks at work had significantly higher cognitive function at baseline than those who did not have such demanding work. The eight year follow up also allowed them to determine that the rate of cognitive decline was lower among those people who had done mentally demanding work. Specifically, tasks that stimulated verbal intelligence and executive functions (planning, organizing, making decisions, remembering details, etc.) were particularly important for sustaining high levels of cognitive function with age.[1]

Similar findings came from a 2014 study that found that high mental demands in the workplace were associated with better cognitive functioning. The positive effects of a demanding job were seen after retirement, as well, suggesting that a mentally demanding career may have a protective affect on memory and cognitive function later in life.[2] The study can’t prove that a mentally demanding career is the cause for better cognitive function, it only suggests that there is a strong association between the two.

What might cause this association?

There are many theories on why mental demanding work may protect against cognitive decline and dementia. In a nutshell, researchers believe that higher levels of mental activity throughout our lives can help build up a “cognitive reserve” that enhances our mental capacity. This kind of reserve can help compensate for damages that occur in the brain naturally as we age, thus delaying the onset of symptoms like memory loss and dementia.[2] This theory is why people are encouraged to challenge their brains on a regular basis.

If you have a mentally demanding job, hopefully this new research can help you to find a newfound appreciation for your work. And if you don’t feel that your career or daily life gives you ample opportunity to challenge your mind, try to spend some time each day pursuing something that does. Try one of these ideas:

• Do crossword or Sudoku puzzles.
• Learn a new language. Your local library may have free software, such as Mango, to help.
• Read or research new information. (For example, check out the NHA Library to delve deeply into natural care research and information.)
• Use brain training programs like Lumosity.

Anything that makes you think, use your brain, and build up a cognitive reserve can theoretically help protect against memory loss and dementia in old age.

Check out our collection of blogs on Cognitive Decline and Memory Issues for other tips on prevention and management of cognitive decline, dementia, and Alzheimer’s disease. To learn how personality traits may play a role in your risk for dementia, read more here.

Share your experience

Does your job give you an adequate mental challenge? What helps with memory for you? Please share any brain exercises or games that you like to use to keep your brain in top shape.

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[1] Neurology. 2015 Apr 29. [Epub ahead of print]

[2] J Occup Med Toxicol. 2014 May 28;9:23.

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