Saturday’s Brain Blast event at Vanderbilt Health One Hundred Oaks, sponsored by the Vanderbilt Brain Institute, attracted 268 children and about 100 adults to free, hands-on activities. Above, 4-year-old Zacharia Rashid holds a human brain. Below, 8-year-old Liam Aaronson extracts DNA from strawberries, assisted by his father, Oran Aaronson, M.D., center, and Ronald Emeson, Ph.D.