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.
Primary exertional headache (PEH) is a headache brought on by exercise, any form of exercise and is experienced by approximately 10% of the population. It is more common among men than women. PEH is termed primary because it's not caused by another condition or disorder.