Unexpected Health Advantages of Regular Blood Donation Aside from Reducing the Risk of Cardiovascular Diseases In India, the demand for blood transfusions arises every 2 seconds. On average, 14.6 million units of blood are needed every year, and there is always a shortage of 1 million units. Besides a lack of ... Neha kashyap posted on 1 year ago — updated on 1 year ago 27,896 views