New Chestnut Hill Hospital medical staff member Michael Weaver, M.D., chair of neurosurgery at the Lewis Katz School of Medicine at Temple University, will discuss common causes of chronic back pain and different treatments from 9 to 10 a.m., October 14. At The Market at the Fareway.

About 80 percent of adults experience low back pain at some point in their lives. Most often, the pain is acute and resolves on its own. Pain lasting for more than 12 weeks is considered chronic and may need further treatment.

Free admission and parking. Location: 8229 Germantown Ave., behind the Chestnut Hill Hotel, Philadelphia. To register, call the Chestnut Hill Business District at 215-247-6696.