Common language rarely makes a difference. 1) "If stamina is the ability to run long and slow, what is endurance? According to the way I’m defining the term, endurance is the ability to sustain race pace at an uncomfortable level of exertion." Source and further information: http://www.humankinetics.com/products/showexcerpt.cfm?excerpt_id=3979 2) "Stamina is the ability go for hours regardless of pace. Endurance is keeping a specific pace for as long as possible. Running a lot of easy miles will give you a lot of stamina but not necessarily a lot of endurance. Running intervals or time trials at 5k pace will give you alot of endurance at that pace." Source and further information: http://www.letsrun.com/forum/flat_read.php?thread=653188 3) "stamina: 1. (botany) Plural form of stamen. 2. (obsolete, as plural) The basic elements of a thing; rudimentary structures or qualities. (now considered singular) The energy and strength for 3. continuing to do something over a long period of time; power of sustained exertion, or resistance to hardship, illness etc." Source and further information: http://en.wiktionary.org/wiki/stamina "endurance: 1. The measure of a person's stamina or persistence. He has great endurance, he ran a marathon and then rode his bicycle home. 2. Ability to endure hardship." Source and further information: http://en.wiktionary.org/wiki/endurance

Heart. To me stamina would mean the body is finished but the soul wont quit. To me endurance would be how long the body will continue past the normal strength.

This is what I found: "Endurance refers to the combined continuous effort of lungs and muscles. Whereas stamina is synonymous with aerobic capacity and is related to the capacity of lungs to supply Oxygen." http://www.aarogya.com/index.php?option=com_content&task=view&id=843&Itemid=862