State some causes of angina pectoris

Explanation:

Hardening of arteries (atherosclerosis)

A blood clot.

Plaque in an artery that can rupture (unstable plaque)

Poor blood flow through a narrowed heart valve.

Lessened pumping of the heart muscle.

Coronary artery spasm.

the more fit you are, the faster the recovery. your heart rate drops most sharply in the first minute after you stop exercising; it should then fall about 20 beats a minute—a drop of less than 12 beats a minute is considered abnormal. this “recovery heart rate” is measured as part of an exercise stress test.