Dr Melissa "Dr Mac" MacDonald is a sports chiropractor located in the Twin Cities Minnesota. She spent two years of specialty train in sports medicine before opening her own clinic, Mobility Agility Chiropractic Performance. She is now the team chiropractor for Minnesota roller derby and River City Rthyms a Drum corp international marching band. In her spare time, she is the host of the MAC Performance podcast which will whiplash you back into health each week.