Summary:

- The article discusses a study that found soccer headers can briefly impair brain function, even in the absence of concussion symptoms.
- Researchers used a mobile brain-imaging device to measure changes in brain activity immediately after players performed routine headers during a practice session.
- The study suggests that repetitive subconcussive head impacts from soccer headers may have subtle but potentially significant effects on brain function, highlighting the need for further research on the long-term consequences of these types of head impacts in sports.