World Blood Donor Day last Sunday. There are eight common blood groups, but 36 human blood groups in total. The most common type varies by ethnicity, but some are exceedingly rare, with only 1 in 6 million people sharing one type.Learn more here.Our next most-popular article took a close look at the properties of apple cider vinegar.
There is some evidence to suggest that apple cider vinegar may support weight loss. We examine whether this is true, recommend the best ways to use it, and consider the possible side effects of consuming too much.