LifeStream will conduct two blood drives this week at Walmart in Yucca Valley. The first one will be Friday, March 16, followed by a second blood drive on Saturday, March 17. Both blood drives are from 10 to 3. Due to a nationwide blood shortage, all blood types and all types of blood donations are needed. Donors will receive incentives. In addition, LifeStream offers donors free cholesterol screening with every blood donation. All prospective donors should be free of infections or illness, weigh at least 110 pounds, and not be at risk for AIDS or hepatitis. To make an appointment to donate blood, call 800-TRY-GIVING.