| Many millions of people have
high blood pressure(hypertension 高血压). What’s so frightening about this so
called silent killer is that it often does not produce {{U}} (51)
{{/U}}for years, secretly damaging arteries and organs throughout the body
until it erupts (爆发) in the form of stroke, heart attack, congestive heart
failure(充血性尽力衰竭) or kidney disease. {{U}} (52) {{/U}} left untreated,
even mild hypertension can reduce the life expectancy of a 35-year-old
{{U}} (53) {{/U}} several years. (Readings of 140 to 159 over 90 to 99
are mildly high; about 120/80 is normal. ) That’s why high blood pressure is commonly treated with anti-hypertensive drugs. But studies {{U}} (54) {{/U}} that in some people an increase in calcium(钙) consumption can help {{U}} (55) {{/U}} blood pressure without medication(药物治疗)。 Calcium also seems to A. evidence B. symptoms C. marks D. sign 我来回答: 提交
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