According to the Illinois Prescription Monitoring Program, both the number of opioid prescriptions written and the number of patients served dropped by almost half since 2015.

Chronic pain affects 100 million Americans, and using drugs to treat patients' pain has been a process of trial and error. New research by local scientists could lead to more personalized treatment of chronic pain.

What our age may or may not say about our health, why some people may be “hardwired” to experience chronic pain, and a possible explanation for the ice geysers on Saturn's moon Enceladus. Rabiah Mayas joins “Chicago Tonight” to examine these stories and more.