At 6:30 p.m. Oct. 28, HOPE Dementia Support will host a free Zoom seminar, “The Mysteries of the Dementia Brain,” with neuropathologist Randall Woltjer of the OHSU Brain Institute. Woltjer will share insights from years of research into how dementia affects the brain. Register at us02web.zoom.us/webinar or call HOPE Dementia Support at 360-513-5754.