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AH

Andrew Huberman

05/22/25

@ Andrew Huberman

Fasting until around 11:00 a.m. or noon increases adrenaline levels, enhancing focus and learning without causing stress or panic.

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AH

Maximize Productivity, Physical & Mental Health With Daily Tools | Huberman Lab Essentials

@ Andrew Huberman

Maximize Productivity, Physical & Mental Health With Daily Tools | Huberman Lab Essentials

05/22/25

Related Takeaways

EI

Elizabeth Iorns

09/14/17

@ Y Combinator

Fasting can improve metabolic control and appetite regulation, but it can be difficult to maintain, as it affects cognitive function during the fasting period.

AH

Andrew Huberman

08/08/22

@ Andrew Huberman

Eating early in the day supports your biological clock and increases alertness, but it's not necessary for everyone.

AH

Andrew Huberman

05/22/25

@ Andrew Huberman

I typically eat my first meal around noon, and it's important to avoid large volumes of food to maintain alertness and cognitive function.

AH

Andrew Huberman

05/22/25

@ Andrew Huberman

For lunch, I focus on protein and vegetables, keeping carbohydrates low to support alertness through adrenaline and dopamine.

AH

Andrew Huberman

10/07/20

@ Lewis Howes

Adrenaline is released rapidly into the body in response to stress, increasing alertness and energy levels almost instantly.

AH

Andrew Huberman

04/03/25

@ Andrew Huberman

Fasted exercise can enhance fat oxidation, especially after about 90 minutes of moderate-intensity exercise, where the body shifts from burning glycogen to body fat.

RS

Ryan Soave

04/21/25

@ Andrew Huberman

The first 15 to 20 seconds after an adrenaline response is critical; if you can wait that long, you are less likely to make impulsive decisions.

AH

Andrew Huberman

01/03/22

@ Andrew Huberman

The first phase of the day, 0 to 8 hours after waking, is characterized by elevated norepinephrine, epinephrine, and dopamine, which support an alert and focused state.

AH

Andrew Huberman

08/08/22

@ Andrew Huberman

Delay caffeine intake for 90 to 120 minutes after waking to clear residual adenosine and avoid an afternoon crash.