NFL players wear a device called the Q-Collar around their necks to help prevent head injuries and reduce the risk of concussions. The Q-Collar is a C-shaped collar that compresses against the jugular veins in the athletes neck, increasing the volume of blood in their skulls blood vessels. The increased blood volume then "creates a tighter fit of the brain inside the skull," which can reduce the "slosh" movement that causes brain injury. The Q-Collar is not new, and some players have been wearing it since 2016. It is not a piece of jewelry, but a medical device that can be purchased directly from the Q30 website. The Q-Collar can be worn with other existing protective equipment and is intended to be worn by athletes aged 13 years and older during sports activities.