By P.J. HernandezAdvance News JournalIt’s a cold world out there — literally and figuratively.As the “arctic blast” puts a damper on everything and makes the new year a bit uncomfortable to settle in, it may have been easy to forget that January marks National Blood Donor Month.Just because the world is freezing, doesn’t mean we have to have cold hearts, right?Right. So, for those with New Year’s resolutions lists that have “saving a life” on it, now’s the perfect opportunity to do so.Vitalant, a nonprofit organization, is seeking residents to donate blood to assist hospitals in their operations.According to its ...