leprechauns definition In the folklore of Ireland, little men who resemble elves. Supposedly, leprechauns can reveal â but only to someone clever enough to catch them â the location of buried treasure, typically a crock of gold hidden at the end of the rainbow.
Exertional angina, or stable angina, is a type of chest pain caused by the blockage of blood flow through a coronary artery, or blood vessel around the heart.
Causes of angina. Angina is caused by narrowing and hardening of the main blood vessels going to the heart, which limits blood supply to this major organ.Like all of the bodyâs organs and tissues, your heart needs a constant supply of oxygen-rich blood to function normally.auses of angina. Angina is caused by narrowing and hardening of the main blood vessels going to the heart, which limits blood supply to this major organ.