Many factors cause Indianapolis freshman football numbers to drop

Wednesday's health and safety news from the world of football:

• The Indianapolis Star reported that several factors have contributed to the decline in the number of participants in freshman football in the state.

• The San Jose Mercury News reported on a study that shows youth athletes are suffering from severe "adult" sports injuries at alarming rates.

• The Washington Post looked at the new helmets that will be used this season by Arlington County (Va.) high school football teams this season.

• parents advice on concussion management for their high school students.

• The Chicago Sun-Times looked at an area high school team that is testing the Guardian Cap.

• The Icahn School of Medicine at Mount Sinai announced a neuroimaging technique that identifies concussion-related brain disease in living brain.

• Physical Therapy Products reported on a study that said the location of a head impact is not linked to clinical outcomes.

-- Bill Bradley, contributing editor