LifeStream will conduct a community blood drive on Tuesday, July 28, at Little Church of the Desert, 6079 Adobe Road, in Twentynine Palms, from 2:30 to 6:30 p.m. Donors will receive incentives. In addition, LifeStream now offers donors free cholesterol screening and a mini physical with every blood donation. Those aged 18 to 44 years may register for Be The Match bone marrow screening free of charge. For more information, call 800-TRY-GIVING.