Each blood donation can save up to three lives but new research shows that donating blood appears to also benefit the donor by reducing levels of certain chemicals that are “stuck” in the bloodstream. Health24 reports that it is unclear how dangerous these chemicals are to humans, but animal and human studies have found that high exposure to these so-called ‘PFAS’ chemicals could, for example, cause damage to the liver, impact the immune system, increase cholesterol levels, increase hypertension risk and reduce antibody responses to vaccines. The results from the news study show both regular blood or plasma donations resulted in a significant reduction in their levels in the blood though. So to help reduce the levels in your blood contact the Blood Transfusion Service of Namibia today.