Study throws cold water on depression-Alzheimer's link
I regularly treat patients who suffer from depression, and others who are in varying stages of Alzheimer's disease and dementia. Scientists have long suspected a link between the two conditions, but a new study is casting doubt.
The prevailing theory has been that depression can shrink particular areas of the brain, leaving the gate wide open for Alzheimer's to develop.
A new study claims that's inaccurate. Researchers looked at 486 subjects, ages 60 and older, who didn't already have dementia. There were 134 participants who experienced at least one incidence of depression. Following up after six years, 33 of the original group of 486 had developed Alzheimer's.
Patients who had previously experienced depression had an incredible 2.5 times greater chance of developing Alzheimer's than their peers who'd never experienced any! And if their depression occurred before the age of 60, they were four times more likely to develop Alzheimer's.
Sounds like an iron-clad link, right? Not so fast.
Incredibly, the research team concluded that those who'd had depression at the start of the study were no more likely to develop Alzheimer's. Their reasoning is that not everyone who had depression developed Alzheimer's, and not everyone who developed Alzheimer's had ever experienced depression.
But they also found that there was no difference in any areas of the brain previously suspected of shrinking.
As usual, the mainstream leaves us with a puzzle—and no idea of how to proceed. While the medical community continues to wrangle over whether there's a link between depression and Alzheimer's – and you can bet there will be more wrangling -- here's what you need to d
If you have any symptoms of depression, such as despair or no interest in the things you once enjoyed—and it goes beyond a few days -- get an immediate appointment with your doctor. He can help you rule out any underlying medical issue.
Don't turn your nose up at talk therapy. Remember it isn't a sign of "weakness" to talk about our problems, the true weakness is not talking them through. Strength lies in admitting you need a little help, and talk therapy has been proven very effective.
Consider your diet. If you're not eating well, you could be nutrient- deficient—especially in those brain vitamins like the B vitamins and vitamin D, and that could be what's affecting your mood. Also, make sure you get brain protecting omega-3 fats from fatty fish such as salmon, herring, mackerel and sardines.
Realize that any problem you ignore generally doesn't go away without a little attention from you. Handle things as they come. You'll be healthier for it.
