There are three general reasons for establishing buffer zones: to provide sanctuary, to provide a neutral area that allows for supervision where contending claims exist (in order to, potentially, facilitate cooperation), and to simply reduce tensions through separation of disputants.
Iron and immunity are closely linked: firstly by the fact that many of the genes/proteins involved in iron homoeostasis play a vital role in controlling iron fluxes such that bacteria are prevented from utilising iron for growth; secondly, cells of the innate immune system, monocytes, macrophages, microglia and lymphocytes, are able to combat bacterial insults by carefully controlling their iron fluxes, which are mediated by hepcidin and ferroportin.
Iron deficiency can cause weakness, fatigue and even anemia. Luckily, there are certain foods we can eat to boost our iron intake. These foods are particularly essential for women since they lose blood monthly during menstruation. While a blood test can help you find out if your iron levels are low, consuming iron-rich foods will certainly give you some boost.