本期內容：

If you're a healthy older adult looking for ways to reduce your risk of heart attack and stroke, don't turn to that age-old standby: daily low-dose aspirin. It's no longer recommended as a preventative for older adults who don't have a high risk or existing heart disease, according to guidelines announced Sunday by the American College of Cardiology and the American Heart Association. However, for anyone who has had a stroke, heart attack, open-heart surgery or stents inserted to open clogged arteries, aspirin can be life-saving.

heart attack: n.心臟病
stroke: n. 中風
age-old: adj. 古老的；由來已久的
standby: n. 備份；備用藥品
low-dose: adj. 低劑量的
high-dose: adj. 高劑量的
aspirin: n. 阿司匹林
recommended: adj. 被推薦的；被推崇的
preventative: n. 預防藥品；預防法；預防物
prevent: vt. 防止；防御
cardiology: n. 心臟病學
cardinal: n. 紅衣主教 adj. 重要的
electrocardiogramEKG）
stent: n. 心臟支架
artery: n. 動脈
vein: n. 靜脈

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