How to Quickly Improve Focus - Andrew Huberman

The best way to improve mental focus is by utilizing our innate visual focus mechanisms. Mental focus directly follows visual focus. Our visual system can be either unfocused or laser-focused, and enhancing visual focus can broadly increase mental focus abilities. This connection is crucial for understanding neuroplasticity and how to access it.

Plasticity begins with alertness, which can be triggered by emotions like love, joy, or fear, or by pharmacological means like caffeine. Caffeine increases epinephrine, a relatively safe way to boost alertness. Adderall also increases epinephrine, enhancing brain wakefulness, but it does not directly increase focus or affect the acetylcholine system. Adderall has a high potential for abuse and risks making learning not translate to performance without the drug.

The acetylcholine system, responsible for focused attention, can be activated through behavioral practices centered on visual focus. When we visually focus, our eyes align and the lens adjusts, creating a narrow, high-acuity 'cone' of vision. This visual constriction triggers the release of norepinephrine, epinephrine, and acetylcholine, which are vital for brain plasticity. Practicing visual focus can improve cognitive and mental focus.

Animals like birds, despite having eyes on the side of their heads for broad scanning, exhibit precise focus when pecking for seeds by briefly moving their eyes inward. This 'vergence' eye movement activates brainstem neurons that release neurotransmitters essential for focus and plasticity. Similarly, sighted individuals can practice visual focus at the distance of their work (e.g., screen or book) for 60-120 seconds to enhance mental acuity and information gathering.

Blinking less while maintaining visual focus can increase attention, as blinking resets our perception of time and space. For auditory tasks, closing eyes can create a 'cone of auditory attention,' as seen in visually impaired individuals with exceptional hearing (like elephants and moths) or musicians. Conversely, constant exposure to visual motion (like on phones) can diminish our ability to focus on static text, potentially leading to 'self-induced ADHD' by over-relying on passive, dopamine-rich experiences.

Learning is most effective in 90-minute 'ultradian cycles,' with a 5-10 minute warm-up and an hour of sustained focus. Eliminating distractions by turning off Wi-Fi and placing phones in another room is crucial. Agitation during focus is a sign of engagement, and continually re-anchoring attention to the task, especially visually, enhances learning and plasticity. It's important to identify your most alert periods of the day and dedicate them to high-value learning tasks, rather than passive consumption.

High-performing individuals do not maintain maximum focus all day; they often incorporate periods of non-sleep deep rest (NSDR) or deliberate disengagement, such as walks or simply mindlessly sitting. These breaks accelerate plasticity, allowing learned skills to become more reflexive. Recognizing the natural ebb and flow of focus within a 90-minute cycle is key; expect some flickering at the beginning and end.