@CNN: If you stand inside the world’s quietest room for long enough, you start to hear your heartbeat. Then you lose your balance https://t.co/5RBP9ZHQUb

April 1, 2018 / The Arbiter / CNN

@CNN: If you stand inside the world’s quietest room for long enough, you start to hear your heartbeat. Then you lose your balance https://t.co/5RBP9ZHQUb

If you stand inside the world's quietest room for long enough, you start to hear your heartbeat. Then you lose your balance https://t.co/5RBP9ZHQUb

— CNN (@CNN) April 2, 2018

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