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.
Foods that Make You Feel Better. Don't subsist only on salads during the winter months. Getting an insufficient amount of selenium can mean that you're missing out on a key player in immune function. Selenium helps build up white blood cellsâparticularly those responsible for killing bacteria and viruses, even the flu.