AMA #11: Improve Task Switching & Productivity and Reduce Brain Fog
Explore how to boost your productivity by mastering task switching and reducing brain fog. Discover the connection between cognitive flexibility and focus, along with effective strategies for enhancing transitions between tasks. Learn the importance of transition periods to prevent cognitive overload and improve your efficiency. Practical advice includes prioritizing daily tasks and engaging in perceptual exercises to sharpen your focus. Unlock the secrets of your brain's processes to elevate your performance!
Top snips
What is task switching?
1:46 – 2:56
Andrew Huberman explains task switching vs cognitive flexibility — both rely on the prefrontal cortex, but are different.
Task switching = moving between distinct mental/physical operations (e.g., math → conversation).
Expect delays: your brain must engage certain circuits and quiet others to change tasks efficiently.
— Andrew Huberman
Use short transition gaps
8:18 – 9:35
Introduce a brief, deliberate transition between Task A → Task B. Even 15 seconds of designated transition helps your brain switch faster.
Why it works: you consciously allow some circuits to quiet and others to ramp up, reducing interference and speeding engagement on the next task.
— Andrew Huberman
How long should transitions be?
14:47 – 16:01
Transition length scales with how deep you were in Task A.
- Light task → 60–90 seconds
- Deep focus → 2–10 minutes (if possible)
If pressed, even a 10-second labeled countdown helps. Always expect 5–10 minutes to fully drop into a new demanding task unless you plan a transition.
— Andrew Huberman
Don’t feed your brain new info
17:24 – 18:28
During transitions avoid your phone, social media, or any new context.
Pictures, videos, texts anchor attention and introduce new task demands that disrupt switching.
Instead, limit incoming information for 2–10 minutes so your nervous system can recalibrate before the next demanding activity.
— Andrew Huberman
Pick 1–3 big daily tasks
20:52 – 21:32
Huberman learned from a professor: write down no more than three critical tasks per day.
Focus big cognitive effort on 1–3 items; treat other activities as automatic routines.
This reduces excessive task switching and preserves deep-focus time for work that matters.
— Andrew Huberman
A 2-minute visual drill to switch faster
23:42 – 25:34
Simple perceptual practice (about 2 minutes):
- Close eyes, focus on body/breath (5–15s)
- Open eyes, focus on your hand (5–15s)
- Look 10–50 feet away, then to the horizon
- Close eyes and return
This trains visual attention shifts and the brain’s time-slicing, speeding task switching.
Why visual focus changes help
26:14 – 28:07
Shifting visual attention alters how your brain slices time (fine vs. coarse temporal parsing).
Close-up focus = fine time-slicing; far-focus = coarser time perception. Practicing these shifts trains neural circuits to move between time-domains, improving the speed and quality of task switching.
— Andrew Huberman