When does huberman mention not drinking coffee too early or too late?

Andrew Huberman emphasizes the timing of caffeine consumption to optimize energy levels and sleep quality. He suggests:

1. Delay Morning Intake: Caffeine should ideally be consumed 90 minutes to 2 hours after waking up. This timing helps to manage the buildup of adenosine, a sleep-inducing compound, allowing your body to wake up naturally and avoid an afternoon crash from caffeine 1.

2. Avoid Late Afternoon Consumption: Huberman recommends cutting off caffeine intake by around 2 PM to ensure it does not disrupt sleep later in the evening. He notes that for most people, cutting caffeine earlier in the day helps prevent issues with falling and staying asleep 2.

3. Caffeine's Effects: Although caffeine can enhance alertness by blocking adenosine, consuming it too late can extend the effects of cortisol and lead to an energy crash later in the day 3.

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     1

     Caffeine Timing Secrets

     00:28:01
     
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     2

     Managing Evening Cortisol

     01:19:49
     
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     3

     Caffeine Timing Insights

     00:46:08
     

For more detailed discussions, you might want to check out episodes like “Maximizing Productivity, Physical & Mental Health with Daily Tools” and “How to Control Your Cortisol & Overcome Burnout” on the Huberman Lab.