Experts Examine Links Between Brain Injuries and American Football
The number of young people who play American football decreased from 2008 to 2016 according to the Aspen Institute, a research center.
There are many reasons for this decrease.
But some parents, such as businessman Mark Cuban, will not let their children play the sport because of concern about brain injuries.
A recent study seems to support some of these concerns. It gives more evidence that too much American football is seriously damaging the brains of players.
Scientists at the Brain Bank are studying a kind of brain injury known as Chronic Traumatic Encephalopathy.
The Brain Bank is a center at Boston University in Massachusetts where brains and other tissue are stored and studied.
Chronic Traumatic Encephalopathy, or CTE, is caused by collisions that push the brain around inside the skull.
In a recent study, the scientists at the Brain Bank found high levels of CTE in dead football players.
The scientists studied the brains of 202 former players. These athletes, who had donated their brains for research, played at high school, college or professional levels.
The scientists found CTE in 177 of the 202 brains. The scientists found especially high rates of CTE in the brains of former National Football League, or NFL, players. Out of the 111 former NFL players studied, 110 showed signs of CTE.
Many of those found to have CTE suffered from behavioral or mood problems during their lifetimes. Many also suffered from dementia, too.
Amy McKee is one of the lead researchers at the Brain Bank. She said CTE can affect even the brains of young people.
"We can see spaces near the hippocampus, which is a part of the brain that's important for learning and for memory, and we can see that there has been shrinkage there as well. To see this in such a young individual is quite startling."
McKee says helmets can give some protection from CTE. But, she explains that the risks are still great.
"They helmets will never be the solution for CTE...They may make it less likely, but it is always going to be a risk once you have head contact," she said.
McKee and her team are now looking for ways to diagnose CTE before a player dies. They are also looking for drugs that might treat it.
I'm John Russell.
1.according to 通过
He and his father, according to local gossip, haven't been in touch for years.
2.research center 研究中心
He also has established an environmental high school and a research center.
3.concern about 担心
The Prime Minister swept aside concern about the rising cost of mortgages.
4.known as 被称为
China has always been known as a land of propriety and righteousness.
1.Many of those found to have CTE suffered from behavioral or mood problems during their lifetimes.
suffered from 遭受
He suffered from hypertension and accompanying heart problems.
The operation was successfully performed, but the patient suffered from shock.
2.Scientists at the Brain Bank are studying a kind of brain injury known as Chronic Traumatic Encephalopathy.
a kind of 一种；有点
The book is a kind of allegory of Latin American history.
In some people's view, TV series is a kind of quasi-art.
例如商人马克·库班（Mark Cuban）等父母不允许孩子玩这一运动，他们担心孩子会脑部受伤 。
最近一项研究似乎证实了这些担忧 。该研究列举更多的证据表明，过于频繁的美式橄榄球运动会严重损害球员的大脑 。
科学家对202名退役球员的大脑进行了研究 。这些运动员曾在高中、大学或专业球队里玩橄榄球 。
研究显示，在202个大脑中，有177个患有CTE 。科学家发现，国家橄榄球联盟（NFL）退役球员患CTE的风险特别高 。在接受调查的111名国家橄榄球联盟退役球员中，有110人出现了CTE的迹象 。
很有患有CTE的人一生中会饱受行为或情绪问题的困扰 。还有许多人患上痴呆症 。
艾米·麦基（Amy McKee）是大脑银行的首席研究人员之一 。她说CTE甚至可以影响年轻人的大脑 。
“大家可以看到海马体附近的区域，海马体是大脑中负责学习和记忆的重要部分，我们可以看到那里也出现收缩 。在年轻人身上看到这一点相当令人吃惊 。
麦基指出，虽然头盔可以提供一些防护 。但是，风险仍然很高 。
麦基和团队正在寻找一种方法，在球员死亡前诊断出CTE 。他们也在寻找治疗这一症状的药物 。