NBC News’ Steve Patterson reports on the dangers of shallow water blackouts, even for the most experienced swimmers. It can be caused by fainting or “blacking out” in water or something as simple as holding your breath underwater for an extended period of time, leading it to be considered one of the top causes of unintentional deaths. » Subscribe to …

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Here’s your 7-step survival guide in case you find yourself to be the last human on Earth. So you wake up one day and find that … source