Arapid, irregular heartbeat is a symptom of
a. high blood pressure
b. stroke
c. atherosclerosis
d. heart failure
why is high blood pressure known as "the silent killer"?
a. it generally shows no symptoms.
b. it kills people while they sleep.
c. it generally increases the risk of heart attacks.
d. it kills by cutting off the airways.

A ) high blood pressure

B) it generally shown no symptoms

Explanation:

A ) high blood pressure

Series of tests by scientist have shown that as physical stress increases, calcium release increases, increasing heart contractions so that heart can pump harder against increased blood pressure.

B) it generally shown no symptoms

Hypertension is termed the silent killer since most high blood pressure sufferers had no signs to warn them to high pressure.

answer; the above is true;