Previous studies have proven that hypothyroidism often causes dementia.
To prevent this from happening, we need to know how it happens. And no study has been able to find that out—until now.
A new study in the Journal of Clinical Endocrinology and Metabolism reveals exactly how hypothyroid does cause dementia.
And frankly, it’s terrifying!
The good news is that this discovery can lead to a simple way to reverse both hypothyroid and dementia—but you have to act fast.
A group of scientists analyzed data of 5,142 adult participants in the Rotterdam Study in The Netherlands between 1989 and 2006. They were all middle-aged or elderly, with an average age of 63.8 years.
They all had measurements available for their levels of thyroid-stimulating hormone and free thyroxine (thyroid hormone) flowing through their bloodstreams. Normal free thyroxine levels were defined as 11–25 pmol/L (picomoles per liter).
In addition, all participants underwent brain MRI scans between 2005 and 2015 to measure the blood flow in their brains. They measured blood flow in ml/100 ml/min, meaning milliliter of blood flow per 100 milliliter of brain per minute.
This is what they found:
- 1. Compared to those with normal free thyroxine levels, those with low levels (10 pmol/L) had around 0.8 ml/100 ml/min less blood circulation through their brains.
2. Compared to those with normal free thyroxine levels, those with high levels (25 pmol/L) had around 2.44 ml/100 ml/min less blood circulation through their brains.
3. They found no association between thyroid-stimulating hormones and blood circulation in their subjects’ brains.
This means that both high and low free thyroxine levels, even when they are on the upper and lower ends of normal, are associated with low brain blood flow.
This also shows that the effect of hyperthyroidism is even worse than that of hypothyroidism.
Interestingly, in a subset of participants whose eyes were examined, the scientists found narrower blood vessels in the retinas of people with hyperthyroidism and hypothyroidism, suggesting that a narrowing of blood vessels could also explain why blood flow through their brains was lower.
This is a good reason to prevent hypothyroidism, but it is important to do this naturally so that you don’t elevate your thyroid hormone level too much.
And if you’re beginning to experience those senior moments of dementia, you can reverse it by loading your brain with the one free ingredient explained here…