NEWPORT NEWS — January marks the 57th National Blood Donor Month, and the Hampton and Peninsula Health Districts are encouraging the community to give blood. According to a release from the health districts, winter is traditionally a time when blood donations decline due to weather conditions, holiday travel, and seasonal illnesses — factors that can put blood supplies at risk. National Blood Donor Month honors the lifesaving contributions of blood donors and raises awareness about the urgent need for donations. “Donating blood is life-saving for those in need.”A single blood donation can save up to three lives, according to the release. The Hampton and Peninsula Health Districts note blood cannot be manufactured or synthesized like other medical treatments, so blood donors are the sole source of life-saving blood products.