Whatever next, farting can lead to blindness...
I mean if we believe everything they come up with we wouldn't be eating or drinking anything, I know any potential link to Dementia would be beneficial (if we know about it we can avoid it), but come on when all the tests have been carried out and they can say 99.9% without a doubt there is a link then i'll listen. I am carrying a few extra pounds from comfort eating, i'm not suddenly going to over do the exercising on the likelihood that there 'may' be a link.
That's up to you. But as with many of these diseases, obesity is just a risk factor. Being obese does not mean you will get dementia, just as being thin means you will avoid it.
This said, you can improve your odds. If you are obese then you are weighting the dice against yourself - by being a healthy weight you are weighting them in your favour.
It is just like smoking - it will not inevitably give you lung cancer...but it make sit much more likely than it would otherwise be.
You will always get anecdotal stories of people who smoked eighty a day for their whole lives and die in a traffic accident aged ninety, whilst someone who never smoked gets lung cancer in their thirties. These are then construed as "evidence" that the medics are wrong. But in actuality it's like crossing a busy road blindfolded; someone will always make it safely to the other side, but it's a self-evidently risky thing to do.
The same is true of being obese or smoking. And these risks compound; each factor you add on makes a bad outcome more likely. For example, be obese
and a smoker
and inactive and you dramatically shorten your odds. Even more so, because those risk factors can themselves cause other risks, like high blood pressure or diabetes.
It is certain that inheritance plays a large role; some people have a high resistance to developing high blood pressure, whilst others can lead a very healthy lifestyle and still get it.
The bottom line is, there are factors in your control, and others out of it. It makes sense to tackle the ones within your control, because then you're not compounding risk factors you can do nothing about (like a family history of a disease)
If nothing else, it is just blindingly obvious that being obese is simply unhealthy - it's not a good way to be, full stop. How can constantly carrying around tens of pounds of excess fat be otherwise?
