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.
Possible health benefits of consuming selenium. Selenium is involved in the production of prostaglandins in the body, which regulate inflammation and may reduce inflammation related to Rheumatoid arthritis. A study out of the Netherlands has linked selenium intake to a lower risk of prostate cancer.