健康生活英语演讲稿,健康生活演讲英语作文3分钟左右加汉语翻译

健康生活英语演讲稿,健康生活演讲英语作文3分钟左右加汉语翻译

If you're middle-aged and your memory's not what it used to be, check the
bathroom scale, researchers warned, suggesting overweight people tend to score
more poorly on tests of memory than their thinner peers do.The findings suggest that a heavier weight in middle age may mean a higher
risk of dementia later in life.Reporting in the journal Neurology, the researchers speculated that higher
rates of cardiovascular disease or diabetes might help explain the link. But
it's also possible that substances produced by fat cells, such as the hormone
leptin, have direct effects on the brain.The study compared mental abilities to body mass index (BMI), a measurement
of weight in relation to height used to define overweight and obesity. A BMI of
25 or more indicates overweight, and 30 or more is obese.The study also investigated the relationships between BMI and cognitive
function in 2,223 healthy men and women between the ages of 32 and 62 in France
through the use of four cognitive tests.The study found a higher BMI was associated with lower cognitive test scores.
Results from a test involving word memory recall show people with a BMI of 20
remembered an average of nine out of 16 words, while people with a BMI of 30
remembered an average of seven out of 16 words.研究人员提醒，如果你已步入中年，发现自己的记忆力不如从前，那么你得小心体重了。研究表明，超重的人记忆测试的得分要比较瘦的人低。研究发现，体重偏大的中年人今后患老年痴呆症的可能性较大。研究报告在《神经学》期刊上发表，研究人员推断，心血管疾病及糖尿病的高发现象可以解释其中的原因。此外，脂肪细胞所产生的物质，如瘦体激素，对大脑有直接影响。此项研究将调查对象的智力与体重指数进行了对比。体......余下全文>>