CNN双语新闻(翻译+字幕+讲解):全球有11亿高血压 美国东南部山火肆虐

Scientists said Imperial College London recently studied world blood pressure statistics between 1975 and 2015, 伦敦帝国学院的科学家近期研究了1975年至2015年间全球高血压的数据，
and here's what they found: 1.13 billion people, more than 15 percent of the world's population now have high blood pressure. 他们发现：目前全球有11.3亿人患有高血压，在全球人口的占比超过15%。
That's almost twice the number of people affected 40 years ago, 这一数据几乎是40年前高血压患者的2倍，
but this is also because the world population has increased in the last 40 years and gotten older. 但同时这也与过去40年全球人口的增加和老龄化有关。
Those with higher blood pressure today tend to live in poorer parts of the world. 现在，高血压患者基本生活在世界较贫困的地区。
What causes elevated blood pressure? 什么会造成血压升高？
Lots of salt and potassium in diets, pollution and exposure to lead, and bad nutrition in childhood. 高盐高钾饮食、污染、铅接触以及孩童时期的营养不良都会引发高血压。
High blood pressure can increase your risk of strokes, heart, and kidney disease. 高血压会增加中风、心脏病和肾病的风险。
But blood pressures aren't rising everywhere. Rates have dropped in the U.S. and Canada. 但是，并不是所有地区都出现了血压升高的情况。美国和加拿大患病的比例有所减少。
Experts say better food options and health services have helped. 专家表示，更好的食物选择和卫生服务有助于减少高血压患病率。
The drought in the U.S. southeast has contributed to the spread of dozens of wildfires. 美国东南部地区的干旱引发了数十起山火。
The U.S. Forest Service says more than 30 large fires have scorched more than 80,000 acres. 美国林务局表示，30余起山火的过火面积达8万英亩。
That's like 80,000 football fields in Alabama, Georgia, Kentucky, North and South Carolina, and Tennessee. 这一面积相当于阿拉巴马州、乔治亚州、肯塔基州、北卡罗来纳州、南卡罗来纳州和田纳西州8万座足球场的面积。
But that's just the big fires. Yesterday, there were more than 67 total fires burning in Tennessee alone. 这只是统计了大火。昨天，光田纳西州就发生了超过67起火灾。
There are states of emergency in several places 田纳西州多个地区已经进入紧急状态，
hundreds of people have been hospitalized in Tennessee with breathing problems related to the fires. 同时有数百人因火灾引起的呼吸问题入院治疗。