The organization and daily routine of a wagon train depended on the danger expected from the Native American tribes into whose territory it had traveled, the terrain, and the size of the caravan. Mormon trains, in particular, had a semi military formation.
Side effects. Taken at normal doses, selenium does not usually have side effects. An overdose of selenium may cause bad breath, fever, and nausea, as well as liver, kidney and heart problems and other symptoms. At high enough levels, selenium could cause death.
How Selenium Benefits Your Body. Selenium is able to play such a protective role in the body because it increases antioxidant capabilities and the quality of blood flow, therefore enhancing the bodyâs resistance against diseases and stress.hole foods are the best sources of selenium, especially when these foods are handled and prepared in a delicate way, since selenium may be destroyed during processing and very high heat cooking methods.