Report: NFL coaches uphappy about practice limits set by CBA

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

• The Boston Globe reported that NFL coaches are frustrated by the lack of practice time, which was reduced in 2011 by the Collective Bargaining Agreement.

• USA Today reported that Arizona Cardinals coach Bruce Arians was livid Sunday after defensive end Calais Campbell received a chop block during the loss to the Denver Broncos, calling it the "dirtiest play I've ever seen."

• The Buffalo News wrote about the Buffalo Bills' dietary habits, which are good, but not always perfect.

• The Bleacher Report wrote that the NFL's new drug policies will be a major improvement.

• NBC News reported that Super Bowl III star Dave Herman has been diagnosed with CTE.

• The Boston Globe reported on area women who have been helped by the NFL's annual breast cancer campaign.

• DenverBroncos.com featured tight end Julius Thomas, who shared his passion for reading with students.

• Jaguars.com reported how Jaguars players visited the Jacksonville Ronald McDonald House.

• In light of the controversy at the University of Michigan nine days ago, Chris Mendias, assistant professor of Orthopaedic Surgery and Molecular & Integrative Physiology at the University of Michigan Medical School, wrote for the Ann Arbor News that mild concussions are often difficult to diagnose on the football sidelines.

• ESPN reported on study that head injuries in the NCAA's Football Championship Subdivision go underreported.

• Aljazeera looked at emerging concussion technologies.

• a multi-part series on concussions in sports.

• on the state's high school athletic association watches over concussions this football season.

• KTHV-TV in Little Rock, Ark., reported that North Little Rock schools have spent $16,000 upgrading their helmets this season.

• WKRN-TV in Nashville looked at the Tennessee high school governing body's strict new regulations regarding concussions in sports.

• The New York Times reported on a Toronto-area school district that has started teaching a concussion-awareness course to 9th graders.

• WYFF-TV in Greenville, S.C., reported on the helmets being in used by high school football players in its area.

• about a group of parents trying to create an opt-out clause for drug testing of high school athletes.

• KTVK-TV in Phoenix talked to parents of high school football players about their safety concerns.

• KPHO-TV in Phoenix featured a local sports science lab that is trying to make athletes smarter.

-- Bill Bradley, contributing editor