"In Portugal, on average, around 1,000 transfusions and blood are needed every day, which depend on the solidarity of donors", says the health unit in a post on Facebook.

Donating blood can "make a difference in the lives of thousands of patients", including "accident victims, cancer patients or those in need of surgery".

To be a donor you must have (only) three basic requirements. Are they:

- Be healthy

- Weigh at least 50 kilos

- Be between 18 and 65 years old

“A blood donation can help save up to three lives”.