Stanford neuroscientist Andrew Huberman says one morning habit sets the tone for his day

Andrew Huberman, a Stanford neuroscientist and host of the "Huberman Lab" podcast, swears by this simple morning habit for maintaining his health.

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• Andrew Huberman says one simple morning habit helps him optimize his physical and mental health.
• The neuroscientist and podcaster said people should aim for high cortisol in the morning and low cortisol at night.
• The "best way" to spike morning cortisol levels is to get daylight soon after waking up, he said.