According to the passage, which of the following is NOT a possible cause of many heart attacks? A. decreased blood flow to the heart B. increased blood presure C. lower heart

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According to the passage, which of the following is NOT a possible cause of many heart attacks?

decreased blood flow to the heart

increased blood presure

lower heart rate

increase in hormones

Giải thích

Đáp án C

Theo bài đọc câu nào sau đây không phải là nguyên nhân gây bệnh tim?

A. Giảm lượng máu chảy vào tim

B. Tăng huyết áp

C. Nhịp tim thấp

D. Bị căng thắng

Though stress is thought to be linked in some way to all of the aforementioned risk factors,

=> loại câu D An early-morning rise in blood pressure, heart rate, and concentration of heart stimulating hormones, plus a reduction of blood flow to the heart, may all contribute to the higher incidence of heart attacks between the hours of 8:00 A.M. and 10:00 A.M. => loại câu A và B.