All my years playing I only got hit in the head twice. Once when I was 6 and didn't know any better me and my friend lined up against each other like lineman and ran our heads into each other. Second time was like Jr or Sr year, playing pickup, I caught the ball and lowered my shoulder, my boy lowered his shoulder into me, we connected at the shoulders, damn near ripped my ear off my head but there wasn't any head impact.
Any other time playing for league and middle/high school I never got lit up or blindsided. That was mostly my fault because I I pretty much ran standing straight up like Forrest Gump.
My 40 was slow, 4.70 and I had big shoes to fill because my oldest brother still holds the high school record from 94 and went all state and my oldest bro was all city/district. And he was a standout in football, basketball and baseball.