Thursday's health and safety news from the world of football:
- Washington Redskins tight end Jordan Reed, who missed seven games last season because of the effects of a concussion, admitted to hiding the injury and called it a "fluke thing," The Washington Times reported.
- NFL.com reported that the NFL has suspended New York Giants defensive back Jayron Hosley four games for violating the league's substance abuse policy.
- X2 Biosystems, which provides on-field concussion data for diagnosing head injuries for all 32 NFL teams, announced it has an agreement to use a similar tablet-based system with Major League Soccer.
- The Minneapolis Star Tribune reported on how Minnesota Vikings players helped to build a playground.
- The Cleveland Browns announced the start of "First and Goal," a volunteer program, at a Cleveland-area school.
- Arizona Public Media reported on the University of Arizona's research on concussion management.
- KTIV-TV reported on an NFL High School Player Development Camp that visited Sioux City, Iowa.
-- Bill Bradley, contributing editor