In addition to reducing the risk of heart conditions, discover the unexpected health advantages of routine blood donation 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 2 years ago — updated on 2 years ago 29,416 views