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Fatigue can make it difficult to play your best bridge In the video below, Dr. Andrew Huberman shares a simple technique you can use to instruct the wakefulness systems of your brain to release norepinephrine to increase your alertness. Dr. Huberman advises " if you want to be more alert: keep that chin up, eyes up, eyes open."

Andrew Huberman, Ph.D., is a neuroscientist and tenured professor in the department of neurobiology and by courtesy, psychiatry and behavioral sciences at the Stanford School of Medicine. See the Andrew Huberman YouTube channel.