The Exercise TRAP That’s Killing Your Brain
A few weeks ago, I shared a study showing that exercise is one of the most powerful ways to slow or STOP cognitive decline.
That research even found that it slowed brain shrinkage.
If my report encouraged you to start exercising, that’s great!
However, I have a warning for you today…
It’s about a lifestyle factor that could cancel out exercise’s protective effect.
Even worse, it could lead to an increased risk of cognitive decline and brain shrinkage… regardless of how much you exercise.
For this study, about 400 volunteers wore activity trackers for one week. Then, over the next seven years, the participants took psychological assessments and underwent brain MRIs.
Overall, the researchers found that those who spent the most time sitting had a significantly higher risk of cognitive decline.
In addition, MRI results showed that they were far more likely to experience shrinkage in areas of the brain responsible for learning and memory.
Here’s the surprising part…
In people who were primarily sedentary, these increased brain risks remained the same no matter how much they exercised.
In other words, individuals who exercised but then sat for most of the day had the same brain risks as those who never exercised.
This was especially the case for those with the APOE4 gene—which is known to increase Alzheimer’s risk.
Interestingly, another study published earlier this year found that sitting for more than 10 hours a day also takes a toll on the heart. It increases the risk of heart failure and of dying from heart problems, even in people who engage in more than 150 minutes of moderate to vigorous physical activity per week.
The primary message to take away from studies like these is that workouts aren’t the answer.
When you have an “exercise mentality,” you get your 30 or 60 minutes in—whether it’s walking, cycling, lifting weights, or taking an aerobics class—and then you’re done.
But exercise isn’t the key to a healthy life… movement is. Movement that’s done throughout the day, all day.
So, don’t fall into the exercise trap. Is it good for you? Yes!
But to realize its greatest benefits, it must be accompanied by regular movement throughout your day.
P.S. Try the “YMCA Method” that’s saving seniors’ memories!
View Sources
Marissa A. Gogniat, Omair A. Khan, Judy Li, Chorong Park, et al., Increased sedentary behavior is associated with neurodegeneration and worse cognition in older adults over a 7-year period despite high levels of physical activity, Alzheimer’s & Dementia, Volume 21, Issue 5, May 2025, e70157, DOI:10.1002/alz.70157
