Hi r/science, jumping on to share this research led by UNSW PhD Candidate, Dr Matthew Lennon MD in collaboration with researchers from the University of Oxford and the University of Exeter.

The team found that people who experienced three or more concussions had worse cognitive function, significantly worse concentration and a reduced ability to complete complex tasks.

This is the largest study to explore the cognitive effects of concussion, or traumatic brain injury to date.

Here’s a link to the full study in the Journal of Neurotrauma, if you’d like to take a look: https://www.liebertpub.com/doi/10.1089/neu.2022.0360