![](https://cdn.enthralling.eu/wp-content/uploads/2019/08/facts-7-1.jpg)
Blood banks in Sweden notify donors when blood is used.
Blood donors receive a text message when their blood is “withdrawn.” “We get a lot of visibility in social media and traditional media thanks to the SMS,” Karolina Blom Wilberg, a communications manager at the Stockholm blood service, told Huffington Post. “But above all we believe it makes our donors come back to us, and donate again.”