2022年河南专升本公共英语练习题

FEED THE BRAIN, BUT LESS SUGAR

While no single factor has been identified as the cause of Alzheimer's, it is
thought that lifestyle choices, such as diet, exercise and sleep habits can all have
a significant impact on the risk. In fact, research by the Albert Einstein College of
Medicine has, so far, suggested that lifestyle changes related to healthy ageing
looks "more promising than drug studies".

For the last decade or so, researchers have been exploring the link between
our modern diets and the increasing prevalence of Alzheimer's, specifically
the connection between sugar and the disease. A study published in The New
England Journal of Medicine demonstrated that even a mild elevation of blood
sugar is associated with an elevated risk of dementia.

Previous research had shown a higher risk for diabetics in developing
Alzheimer's. More recent research has shed further light on this, finding an
intricate link between insulin resistance and the brain. Our bodies produce
insulin that is necessary for the survival of brain cells, but this process goes
awry when a toxic protein, called ADDL, removes receptors from these cells and
renders them insulin resistant. As the ADDLs accumulate, our memory can begin
to deteriorate.

So, what should we be feeding our bodies to give our brain the best chance?
A diet low in sugar and carbohydrates and high in healthy fats is essential. Opt
for 'real' food above processed options and try to keep added sugar levels to a