The Health Department is holding a Community Heath and Wellness Fair April 18 from 1:30 to 4:30 p.m. at the Weymouth Elks on Route 53. Scheduled activities include free screenings on cholesterol, glucose, blood pressure, and bone density. There also will be free hearing exams and tai chi lessons. Organizers hope to introduce residents to the many community resources related to health and welfare. Admission is free and refreshments will be served.