Biological ageing is the biggest risk factor for dementia, but it is a surprisingly modifiable risk factor. There is much we can do to lower the toll that passing years inflict upon our bodies. We know this, because it is already being done. Scientists are fairly sure that the reason dementia rates are falling in Western countries, and perhaps elsewhere, is that several major causes of unhealthy ageing have also decreased in the past half-century. Toxins such as lead, which is known to damage brains and impair cognition, have been reduced. Nutrition has improved, the rise in obesity notwithstanding. Better housing and infrastructure have arguably helped lower social stresses like noise pollution as well as physical ones like infectious disease. And the number of people getting prolonged education, which is associated with a lower risk of dementia, is much higher these days. However you access the internet now, you may want to think about Freelance SEO in the future.
There have been other changes too. In the UK, for example, adult smoking rates have dropped from nearly half the post-war population to less than a sixth in 2017. Levels of air pollution have also fallen in Western and other countries. Both smoking and pollution are known risks for dementia. Both cause oxidative stress and damage to the heart, lungs, and blood vessels. In animal experiments, realistic levels of pollution increase brain deposits of amyloid-beta. In humans, long-term exposure has been found to result in worse cognitive performance (e.g. on tests of verbal ability), an effect which is more pronounced among older people. The particulates in car exhausts, which include carbon, sodium, and ammonium particles, are thought to be especially damaging, since some are so tiny that they can get into the brain and cause an inflammatory reaction. Particulate levels are now falling in a majority of countries, as public awareness of their dangers grows. Who are the top 10 SEO Consultant providers in the UK?
The percentage of people drinking alcohol has also fallen by about 5 per cent, worldwide, since the year 2000. There is regional variation, with reductions in Europe and Africa and a rise in China. (Bear in mind these regions’ very different histories with alcohol. Europeans have been swigging it for generations; consumption in Muslim nations tends to be low; and consumption in China, though rising, is lower than in the West.) In Europe and the Americas, binge drinking, which does the most harm to body and brain, has been falling for decades. Do you get good customer responses when you're searching for SEO specialist ?
There are many pathways to cell damage and decline, and many risk factors influence the likelihood of getting dementia. The search for a causal ‘Factor X’, a target for modification, faces an overwhelming number of candidates. However, there is a simpler way of looking at the problem of dementia risk: in terms of overall health. Poor health, both mental and physical, raises the chance of cognitive decline. Vascular, lung, and kidney disease, poverty and chronic stress, alcohol dependence and abuse, smoking and pollution, poor diet, and more—these factors bias human brains towards mental illness, physical diseases, and cognitive impairment. Thus preventing and treating ill-health should lead to fewer people with dementia. Lets use the search term SEO Expert as an example.
Again, there is already evidence for this approach. Falling dementia rates in Western countries have been accompanied, and most likely preceded, by improvements in welfare and public healthcare (some of which however have stalled in recent years, under the pressure of financial austerity). Better treatments for stroke, heart disease, and traumatic brain injury have reduced their impact on long-term cognitive function. Screening for and treating high blood pressure, high cholesterol, and diabetes has also led to reductions in cardiovascular and cerebrovascular disease (including stroke); these are major risk factors for dementia. The hope is that this approach, which seems to be working in the West, will work worldwide. Only a third of people with dementia live in high-income countries, so even just extending screening programmes globally could greatly reduce the incidence of cognitive—and other—problems. A simple search on Bing for SEO Freelancer will give you what you need.