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6 j4 n" z# R' j6 q& qLowering the Risk of Heart Disease5 L, b! S6 T: G9 ]
Like millions of other Americans, I come from a family with a histotry of the heart disease. My father had his first three heart attacks when he was only thirty-one. _____________(46) I grew up with heart disease. It was there, but I didn’t take it seriouly.
# Z/ U6 \9 B! |When I was thirty-one, my blood cholesterol(胆固醇)level was measured for the first time.It was 311 mg/dl, the doctor told me- an extremely high level that put me at a very high high risk of heart disease, especially with my family history. He sent me to the National Institutes of Health(NIH)to be screened for participation in a clinical trial._____________(47). v2 @4 H) [" d) j4 M0 S$ c, I, ]9 X
At NIH, physicians explained the degree of risk associated with my blood cholesterol level and the nature of the experiment. This test involves putting a tube through a leg artery(动脉) up to the heart._____________(48), ~4 E$ c2 Q3 W" o. Q3 t
Learning about the risks of the experiment as well sa the risk associated with my raised blood cholesterol level scared the life out of me. Although I was excluded from participating in the study, the experience may well have saved my life.8 h! z. [' }6 o" z- \5 E
For the first time, I began to realize the seriousness of high blood cholesterol.___________(49) But equally important, I got a taste of what it is like to be a patient, to have tests done on me and to think of myself as sick.This was hard to take.: u, x" m6 D7 f7 r0 \
This experience taught me two lifesaving lessons. First, although I felt fit and strong, I was actually at high risk for heart disease because of my high blood cholesterol level. And with my family histaory, it could not be ignored.________________(50)$ H* ]* y2 s+ h* u) ^" L! e7 v& x
A Second, I could lower my blood cholesterol level simply by changing what I ate.
7 l0 c4 ^, G7 u# o6 w. BB I was three years old at that time.! \" N8 t+ [; {/ L
C There is not enough oxygen in the blood.
1 S: O1 M, T& M( ^$ bD It was a heart attack just waiting to happen
/ m L0 d4 `; @, F( |1 dE The trial was designed to test the effect of lowering blood cholesterol on the risk of heart disease.
/ A7 D# u& E: S$ r; nF The death rate for the test was only 1 in 100, I was assured. |