Probably blood clots such as bruises.
Myocardial infarction, the medical term for heart attack, literally means "heart tissue damage or death.". Heart attacks most commonly occur when one or more of the coronary arteries — a network of blood vessels that supply blood to the heart — become blocked. Heart muscle becomes starved for oxygen and nutrients.
Answer is there more information on this question?
Explanation:
(hope this helps)
middle-distance running, in athletics (track and field), races that range in distance from 800 metres (roughly one-half mile) to 3,000 metres (almost 2 miles).
<span> 1½ to 2 inches - remember: 2 hands, 2 inches There you go!
Enjoy!</span>