The State Blood Donor Centre invites individuals to donate blood. Donors must be between 18 and 65 years old (first-time donors up to 60), weigh at least 50 kg, be well-rested and healthy, and observe specific intervals since their last donation (at least 2 months for men, at least 3 months for women). A valid identification document is required. Donors should not have consumed alcohol the day before and should have eaten. There are also various conditions that prevent donation, such as illness, pregnancy, recent surgeries, or travel to high-risk countries.