Reebok and the electronics company MC10 have teamed up to create
a mesh cap intended to measure the severity of blows to the head
and alert people around them to check the athlete for possibly
serious injury. Concussions and brain damage from blows to the
head have taken center stage in football this year with the
diagnosis of the late NFL linebacker Junior Seau, even drawing
President Obama into the conversation. ABC News was given an
exclusive first look at the mesh cap, known as CheckLight. It is
worn under headgear or a helmet and is lined with sensors that
can immediately notify teammates, coaches, trainers and even
parents in the stands of the severity of a blow to the head. The
sensor, made by Cambridge, Mass.-based MC10, uses stretchable
electronics encased and connected to indicator lights that are
inserted inside a Reebok skullcap. "The device can determine
movement -- very, very quick and sudden movements," Paul
Litchfield, vice president of advanced concepts at Reebok, told
ABC News. "Through a se