This study checks if chiropractic care can help people with **post-concussion syndrome** (PCS). PCS can happen after a head injury and cause problems like headaches and dizziness. Ten people will be chosen to get chiropractic adjustments for 6 weeks. **Chiropractic adjustments** are when a chiropractor uses their hands to help your spine and bones feel better. There will be 3 assessment visits: at the start, middle, and end of the study. Participants will have electrical sensors on their bodies to record how their heart and nerves work during these visits. They'll also wear an **EEG cap**, which measures brain activity, and walk on a treadmill to check their walking pattern.

• Involves 6 weeks of care with 3 visits, each about 2.5-3 hours long.
• Participants must be 18 or older with PCS symptoms for at least 3 months.
• Cannot have had chiropractic care or certain therapies in the last month.

Participants need to be comfortable with wearing sensors and walking on a treadmill. This study is for those who haven't had recent chiropractic or other similar treatments and don't have severe health conditions like serious mental disorders or high blood pressure that rises quickly.