For how we live.
A 32-study review attaches a five- to eight-fold per-tackle concussion risk to one body position, and finds youth players use it more often. A New Zealand school study maps where the force lands.
The first large instrumented-mouthguard dataset from elite Australian football finds women absorb greater rotational acceleration per impact, and that men's ruckmen sit in a category of their own.
In 132 Minnesota school athletes, each step up a housing-based measure of socioeconomic status predicted about 24% fewer days to return-to-play clearance. Childhood adversity did not lengthen recovery.
A decade-on review of chronic traumatic encephalopathy research reports that 5 of 70 veteran donors had features of the pathology and none met the full definition. A small UK rugby study looks elsewhere.
Sequencing hundreds of single neurons from 15 donors with CTE and 4 with repetitive head impacts but no CTE, researchers found the genomic damage tracked the disease, not the exposure.