Nearly 4,600 pharmacies nationwide are hosting Walmart Wellness Day on Saturday, Aug. 3 from 10 a.m. - 2 p.m. to help families prioritize their health this back-to-school season. Customers can receive free glucose, cholesterol, BMI and blood pressure screenings as well as affordable immunizations like flu, HPV, tetanus, hepatitis and more. Select stores will also feature vision screenings makin...