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american voices with castro starts right now on msnbc. thank you, reverend sharpton. hello everyone and welcome to american voices. i am in for alicia menendez this hour. we kick off the new year with a finale of political theater in the house of representatives. what it means for doing the peoples business and the year to come. 14 ballots tonight -- kevin mccarthy finally got what he wanted. last night he became speaker of the house, who knew the 15th time could be the charm. instead of using his historic moment to lay out a vision for the american people, the speaker made it clear ...

And bad luck. essentially what happened is a phenomenon called commotio, or commotio cordis, where there is an impact and it can be even a low impact to the chest wall, to the sternum, and a certain point in the cardiac cycle where the ventricle's are filling. it's a 20 milo second window. and if the chest is hit during that 20 millisecond window, it can trigger and a normal heart driven -- and send you into cardiac arrest. essentially, the heart is not able to function effectively, it's unable to pump out blood to vital organs like the brain, and the biggest concern is how is the brain going ...