interesting observation I made based on Injury.

about 2months ago i broke my ring finger playing football. I didn't jam it because had X-rays done. Ofcourse while it was healing i had to keep a splint on it and could not move it... barely getting any circulation. I noticed my nail barely grew. however upon removing the splint and pulling and tugging and stretching to get my flexibility back, i noticed that my ring finger nail was twice as long as my other nails... coincidence? I'm not sure. but i think injury to the finger and then possibly circulation made my nail growth velocity higher. hair and nails are closely related so thought id just post what i discovered.

i have seen increase hair growth on body hair that had been covered up under a splint before as well