Seniors are invited to a luncheon presentation Wednesday on “brain-healthy” eating at St. Irene Church Hall, 181 East St., from 11:30 a.m. to 1 p.m. Sponsored by Concord Park Assisted Living Community, Dr. Nancy Emerson Lombardo will give an interactive talk about her evidence-based nutrition program to help preserve memory. Call the Council on Aging at 978-371-2895 to sign up.