By Jeff Bellinghausen, a health and fitness fanatic and founder of cnanursing.net, a resource for aspiring nurses.  You’re running from patient to patient, it’s a typical busy day on the ward. Suddenly, that little niggly headache pain comes across you. You take a quick glance at the clock and it’s still two hours until your shift is complete. It’s going to be a loooong two hours. Google Images Sound familiar? It’s highly likely that the little niggle you feel is a direct result of not having taken enough water on board. The absolute fact is that nursing staff, many of whom juggle shift work (and busy shifts at that!), family…