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A recent study published in the journal Applied Physiology, Nutrition and Metabolism has some very exciting findings in the figh
A recent study published in the journal Applied Physiology, Nutrition and Metabolism has some very exciting findings in the figh
admin
2022-11-16
123
问题
A recent study published in the journal Applied Physiology, Nutrition and Metabolism has some very exciting findings in the fight against memory loss and dementia. The World Health Organization (WHO) says that around 50 million people worldwide have dementia. Currently, there’s no treatment or cure for dementia or even a way to alter its progression. That makes preventative treatments even more exciting. Thankfully, numerous new treatments are being investigated, which are at various stages of clinical trials. So it’s not all doom and gloom.
Although there is no cure, there are several things that can be done to support and improve the lives of individuals who have dementia, including: early diagnosis in order to promote early and optimal management; optimizing physical health, cognition, activity and well-being; identifying and treating accompanying physical illness; detecting and treating challenging behavioral and psychological symptoms; providing information and long-term support to carers.
And movement and exercise play a role in brain health. Exercise affects the brain in many ways. To start with, exercise generally increases your heart rate, which in turn pumps more oxygen to the brain. Exercise aids the release of hormones, which provide an excellent environment for the growth of new brain cells. Exercise also promotes brain plasticity by stimulating the growth of new connections between cells in many important cortical areas of the brain. Research from UCLA even demonstrated that exercise increased growth factors in the brain, which makes it easier for the brain to grow new neuronal connections.
While researchers are still trying to determine the exact critical factors that make exercise so good for the brain, the focus seems to be narrowing in on increased blood flow to the brain, surges of growth hormones, and massive expansion of the brain’s network of blood vessels.
Canadian researchers at McMaster University examined the impact of exercise on the brain. Their new study suggests that the intensity at which we get more movement and exercise in our lives is critical. In their research, they found that seniors who exercised using "short bursts of activity" saw an improvement of up to 30 percent in their memory performance, while participants who worked out at a steady-state, moderate level saw no improvement.
Jennifer Heisz, the lead author of the study, quoted in Science Daily, says, "There is urgent need for interventions that reduce dementia risk in healthy older adults. This work will help to inform the public on exercise prescriptions for brain health, so they know exactly what types of exercises boost memory and keep dementia at bay."
It can be learned from Paragraph 1 that________.
选项
A、clinical trials for dementia will involve more patients
B、more new treatments for dementia will be launched
C、fewer people will develop dementia
D、dementia will be completely cured
答案
B
解析
根据题干关键信息Paragraph 1可定位至文章第一段。该段第五句讲到 numerous new treatments are being investigated, which are at various stages of clinical trials (许多新的治疗方法正在研究中,已处于临床试验的不同阶段),由此可推知,很快会发布更多新的治疗方法,故选项B为正确答案。第一段第五句虽然提到正在研究的新的治疗方案处于临床试验的不同阶段,但并不能推知临床试验是否会有更多的病人参与,选项A属于过度推测,故应排除。第一段第三句提到Currently, there’s no treatment or cure for dementia or even a way to alter its progression (目前,尚未发现治疗或治愈痴呆症的方法,甚至没有办法改变其发展进程),虽然后面第五句紧接着提到许多新的治疗方法正在研究中,且已处于临床试验的不同阶段,但这和人们会不会患痴呆症并无很大关联,也无法推知痴呆症是否可以完全治愈,故选项C和选项D应排除。
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0
考研英语二
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