Some exhibits are designed to be fun and educational, while others raise important questions about your health.
Indianapolis resident Karen Graham hasn't been to the doctor in nearly two years. But at Saturday's Expo, she had her finger pricked for a good reason.
"Your good cholesterol should be above 60. You should check with your doctor to see what he'd want you to do," the nurse advised her.
"With my good cholesterol, I really need to take more fish oil and up that," she said. "I haven't had a job or insurance in a while. This is good for people who don't have the chance to get checked to find out more about their health."
Hundreds of people just like Karen Graham had their cholesterol checked Saturday.
They had their aches and pains checked out, and they learned ways to make their food healthier.
In between all the fun were serious questions for doctors, all free of charge.
"A lot of things I do requires me to fully hear because I play sports and I need to hear what the coaches and refs need to tell me," said Jordan Smith, Indianapolis.
Jordan has dealt with hearing issues his entire life. His mother Nashaundra says they're looking for a doctor they can trust.
There was also plenty of free information for families who are trying to make a healthy change in their daily habits.
"We want to make sure we raise our kids to know snack foods aren't their only option. They can see what's different," said Neil Woods, Greenwood.